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HID: move connect quirks
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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/mod_devicetable.h> /* hid_device_id */
71 #include <linux/timer.h>
72 #include <linux/workqueue.h>
73 #include <linux/input.h>
74
75 /*
76  * We parse each description item into this structure. Short items data
77  * values are expanded to 32-bit signed int, long items contain a pointer
78  * into the data area.
79  */
80
81 struct hid_item {
82         unsigned  format;
83         __u8      size;
84         __u8      type;
85         __u8      tag;
86         union {
87             __u8   u8;
88             __s8   s8;
89             __u16  u16;
90             __s16  s16;
91             __u32  u32;
92             __s32  s32;
93             __u8  *longdata;
94         } data;
95 };
96
97 /*
98  * HID report item format
99  */
100
101 #define HID_ITEM_FORMAT_SHORT   0
102 #define HID_ITEM_FORMAT_LONG    1
103
104 /*
105  * Special tag indicating long items
106  */
107
108 #define HID_ITEM_TAG_LONG       15
109
110 /*
111  * HID report descriptor item type (prefix bit 2,3)
112  */
113
114 #define HID_ITEM_TYPE_MAIN              0
115 #define HID_ITEM_TYPE_GLOBAL            1
116 #define HID_ITEM_TYPE_LOCAL             2
117 #define HID_ITEM_TYPE_RESERVED          3
118
119 /*
120  * HID report descriptor main item tags
121  */
122
123 #define HID_MAIN_ITEM_TAG_INPUT                 8
124 #define HID_MAIN_ITEM_TAG_OUTPUT                9
125 #define HID_MAIN_ITEM_TAG_FEATURE               11
126 #define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION      10
127 #define HID_MAIN_ITEM_TAG_END_COLLECTION        12
128
129 /*
130  * HID report descriptor main item contents
131  */
132
133 #define HID_MAIN_ITEM_CONSTANT          0x001
134 #define HID_MAIN_ITEM_VARIABLE          0x002
135 #define HID_MAIN_ITEM_RELATIVE          0x004
136 #define HID_MAIN_ITEM_WRAP              0x008
137 #define HID_MAIN_ITEM_NONLINEAR         0x010
138 #define HID_MAIN_ITEM_NO_PREFERRED      0x020
139 #define HID_MAIN_ITEM_NULL_STATE        0x040
140 #define HID_MAIN_ITEM_VOLATILE          0x080
141 #define HID_MAIN_ITEM_BUFFERED_BYTE     0x100
142
143 /*
144  * HID report descriptor collection item types
145  */
146
147 #define HID_COLLECTION_PHYSICAL         0
148 #define HID_COLLECTION_APPLICATION      1
149 #define HID_COLLECTION_LOGICAL          2
150
151 /*
152  * HID report descriptor global item tags
153  */
154
155 #define HID_GLOBAL_ITEM_TAG_USAGE_PAGE          0
156 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM     1
157 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM     2
158 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM    3
159 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM    4
160 #define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT       5
161 #define HID_GLOBAL_ITEM_TAG_UNIT                6
162 #define HID_GLOBAL_ITEM_TAG_REPORT_SIZE         7
163 #define HID_GLOBAL_ITEM_TAG_REPORT_ID           8
164 #define HID_GLOBAL_ITEM_TAG_REPORT_COUNT        9
165 #define HID_GLOBAL_ITEM_TAG_PUSH                10
166 #define HID_GLOBAL_ITEM_TAG_POP                 11
167
168 /*
169  * HID report descriptor local item tags
170  */
171
172 #define HID_LOCAL_ITEM_TAG_USAGE                0
173 #define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM        1
174 #define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM        2
175 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX     3
176 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM   4
177 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM   5
178 #define HID_LOCAL_ITEM_TAG_STRING_INDEX         7
179 #define HID_LOCAL_ITEM_TAG_STRING_MINIMUM       8
180 #define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM       9
181 #define HID_LOCAL_ITEM_TAG_DELIMITER            10
182
183 /*
184  * HID usage tables
185  */
186
187 #define HID_USAGE_PAGE          0xffff0000
188
189 #define HID_UP_UNDEFINED        0x00000000
190 #define HID_UP_GENDESK          0x00010000
191 #define HID_UP_SIMULATION       0x00020000
192 #define HID_UP_KEYBOARD         0x00070000
193 #define HID_UP_LED              0x00080000
194 #define HID_UP_BUTTON           0x00090000
195 #define HID_UP_ORDINAL          0x000a0000
196 #define HID_UP_CONSUMER         0x000c0000
197 #define HID_UP_DIGITIZER        0x000d0000
198 #define HID_UP_PID              0x000f0000
199 #define HID_UP_HPVENDOR         0xff7f0000
200 #define HID_UP_MSVENDOR         0xff000000
201 #define HID_UP_CUSTOM           0x00ff0000
202 #define HID_UP_LOGIVENDOR       0xffbc0000
203
204 #define HID_USAGE               0x0000ffff
205
206 #define HID_GD_POINTER          0x00010001
207 #define HID_GD_MOUSE            0x00010002
208 #define HID_GD_JOYSTICK         0x00010004
209 #define HID_GD_GAMEPAD          0x00010005
210 #define HID_GD_KEYBOARD         0x00010006
211 #define HID_GD_KEYPAD           0x00010007
212 #define HID_GD_MULTIAXIS        0x00010008
213 #define HID_GD_X                0x00010030
214 #define HID_GD_Y                0x00010031
215 #define HID_GD_Z                0x00010032
216 #define HID_GD_RX               0x00010033
217 #define HID_GD_RY               0x00010034
218 #define HID_GD_RZ               0x00010035
219 #define HID_GD_SLIDER           0x00010036
220 #define HID_GD_DIAL             0x00010037
221 #define HID_GD_WHEEL            0x00010038
222 #define HID_GD_HATSWITCH        0x00010039
223 #define HID_GD_BUFFER           0x0001003a
224 #define HID_GD_BYTECOUNT        0x0001003b
225 #define HID_GD_MOTION           0x0001003c
226 #define HID_GD_START            0x0001003d
227 #define HID_GD_SELECT           0x0001003e
228 #define HID_GD_VX               0x00010040
229 #define HID_GD_VY               0x00010041
230 #define HID_GD_VZ               0x00010042
231 #define HID_GD_VBRX             0x00010043
232 #define HID_GD_VBRY             0x00010044
233 #define HID_GD_VBRZ             0x00010045
234 #define HID_GD_VNO              0x00010046
235 #define HID_GD_FEATURE          0x00010047
236 #define HID_GD_UP               0x00010090
237 #define HID_GD_DOWN             0x00010091
238 #define HID_GD_RIGHT            0x00010092
239 #define HID_GD_LEFT             0x00010093
240
241 /*
242  * HID report types --- Ouch! HID spec says 1 2 3!
243  */
244
245 #define HID_INPUT_REPORT        0
246 #define HID_OUTPUT_REPORT       1
247 #define HID_FEATURE_REPORT      2
248
249 /*
250  * HID connect requests
251  */
252
253 #define HID_CONNECT_HIDINPUT            0x01
254 #define HID_CONNECT_HIDINPUT_FORCE      0x02
255 #define HID_CONNECT_HIDRAW              0x04
256 #define HID_CONNECT_HIDDEV              0x08
257 #define HID_CONNECT_HIDDEV_FORCE        0x10
258 #define HID_CONNECT_FF                  0x20
259 #define HID_CONNECT_DEFAULT     (HID_CONNECT_HIDINPUT|HID_CONNECT_HIDRAW| \
260                 HID_CONNECT_HIDDEV|HID_CONNECT_FF)
261
262 /*
263  * HID device quirks.
264  */
265
266 /* 
267  * Increase this if you need to configure more HID quirks at module load time
268  */
269 #define MAX_USBHID_BOOT_QUIRKS 4
270
271 #define HID_QUIRK_INVERT                        0x00000001
272 #define HID_QUIRK_NOTOUCH                       0x00000002
273 #define HID_QUIRK_NOGET                         0x00000008
274 #define HID_QUIRK_BADPAD                        0x00000020
275 #define HID_QUIRK_MULTI_INPUT                   0x00000040
276 #define HID_QUIRK_SKIP_OUTPUT_REPORTS           0x00010000
277 #define HID_QUIRK_RESET_LEDS                    0x00100000
278 #define HID_QUIRK_FULLSPEED_INTERVAL            0x10000000
279
280 /*
281  * This is the global environment of the parser. This information is
282  * persistent for main-items. The global environment can be saved and
283  * restored with PUSH/POP statements.
284  */
285
286 struct hid_global {
287         unsigned usage_page;
288         __s32    logical_minimum;
289         __s32    logical_maximum;
290         __s32    physical_minimum;
291         __s32    physical_maximum;
292         __s32    unit_exponent;
293         unsigned unit;
294         unsigned report_id;
295         unsigned report_size;
296         unsigned report_count;
297 };
298
299 /*
300  * This is the local environment. It is persistent up the next main-item.
301  */
302
303 #define HID_MAX_USAGES                  12288
304 #define HID_DEFAULT_NUM_COLLECTIONS     16
305
306 struct hid_local {
307         unsigned usage[HID_MAX_USAGES]; /* usage array */
308         unsigned collection_index[HID_MAX_USAGES]; /* collection index array */
309         unsigned usage_index;
310         unsigned usage_minimum;
311         unsigned delimiter_depth;
312         unsigned delimiter_branch;
313 };
314
315 /*
316  * This is the collection stack. We climb up the stack to determine
317  * application and function of each field.
318  */
319
320 struct hid_collection {
321         unsigned type;
322         unsigned usage;
323         unsigned level;
324 };
325
326 struct hid_usage {
327         unsigned  hid;                  /* hid usage code */
328         unsigned  collection_index;     /* index into collection array */
329         /* hidinput data */
330         __u16     code;                 /* input driver code */
331         __u8      type;                 /* input driver type */
332         __s8      hat_min;              /* hat switch fun */
333         __s8      hat_max;              /* ditto */
334         __s8      hat_dir;              /* ditto */
335 };
336
337 struct hid_input;
338
339 struct hid_field {
340         unsigned  physical;             /* physical usage for this field */
341         unsigned  logical;              /* logical usage for this field */
342         unsigned  application;          /* application usage for this field */
343         struct hid_usage *usage;        /* usage table for this function */
344         unsigned  maxusage;             /* maximum usage index */
345         unsigned  flags;                /* main-item flags (i.e. volatile,array,constant) */
346         unsigned  report_offset;        /* bit offset in the report */
347         unsigned  report_size;          /* size of this field in the report */
348         unsigned  report_count;         /* number of this field in the report */
349         unsigned  report_type;          /* (input,output,feature) */
350         __s32    *value;                /* last known value(s) */
351         __s32     logical_minimum;
352         __s32     logical_maximum;
353         __s32     physical_minimum;
354         __s32     physical_maximum;
355         __s32     unit_exponent;
356         unsigned  unit;
357         struct hid_report *report;      /* associated report */
358         unsigned index;                 /* index into report->field[] */
359         /* hidinput data */
360         struct hid_input *hidinput;     /* associated input structure */
361         __u16 dpad;                     /* dpad input code */
362 };
363
364 #define HID_MAX_FIELDS 64
365
366 struct hid_report {
367         struct list_head list;
368         unsigned id;                                    /* id of this report */
369         unsigned type;                                  /* report type */
370         struct hid_field *field[HID_MAX_FIELDS];        /* fields of the report */
371         unsigned maxfield;                              /* maximum valid field index */
372         unsigned size;                                  /* size of the report (bits) */
373         struct hid_device *device;                      /* associated device */
374 };
375
376 struct hid_report_enum {
377         unsigned numbered;
378         struct list_head report_list;
379         struct hid_report *report_id_hash[256];
380 };
381
382 #define HID_REPORT_TYPES 3
383
384 #define HID_MIN_BUFFER_SIZE     64              /* make sure there is at least a packet size of space */
385 #define HID_MAX_BUFFER_SIZE     4096            /* 4kb */
386 #define HID_CONTROL_FIFO_SIZE   256             /* to init devices with >100 reports */
387 #define HID_OUTPUT_FIFO_SIZE    64
388
389 struct hid_control_fifo {
390         unsigned char dir;
391         struct hid_report *report;
392 };
393
394 #define HID_CLAIMED_INPUT       1
395 #define HID_CLAIMED_HIDDEV      2
396 #define HID_CLAIMED_HIDRAW      4
397
398 #define HID_STAT_ADDED          1
399 #define HID_STAT_PARSED         2
400
401 #define HID_CTRL_RUNNING        1
402 #define HID_OUT_RUNNING         2
403 #define HID_IN_RUNNING          3
404 #define HID_RESET_PENDING       4
405 #define HID_SUSPENDED           5
406 #define HID_CLEAR_HALT          6
407 #define HID_DISCONNECTED        7
408
409 struct hid_input {
410         struct list_head list;
411         struct hid_report *report;
412         struct input_dev *input;
413 };
414
415 struct hid_driver;
416 struct hid_ll_driver;
417
418 struct hid_device {                                                     /* device report descriptor */
419         __u8 *rdesc;
420         unsigned rsize;
421         struct hid_collection *collection;                              /* List of HID collections */
422         unsigned collection_size;                                       /* Number of allocated hid_collections */
423         unsigned maxcollection;                                         /* Number of parsed collections */
424         unsigned maxapplication;                                        /* Number of applications */
425         __u16 bus;                                                      /* BUS ID */
426         __u32 vendor;                                                   /* Vendor ID */
427         __u32 product;                                                  /* Product ID */
428         __u32 version;                                                  /* HID version */
429         unsigned country;                                               /* HID country */
430         struct hid_report_enum report_enum[HID_REPORT_TYPES];
431
432         struct device dev;                                              /* device */
433         struct hid_driver *driver;
434         struct hid_ll_driver *ll_driver;
435
436         unsigned int status;                                            /* see STAT flags above */
437         unsigned claimed;                                               /* Claimed by hidinput, hiddev? */
438         unsigned quirks;                                                /* Various quirks the device can pull on us */
439
440         struct list_head inputs;                                        /* The list of inputs */
441         void *hiddev;                                                   /* The hiddev structure */
442         void *hidraw;
443         int minor;                                                      /* Hiddev minor number */
444
445         int open;                                                       /* is the device open by anyone? */
446         char name[128];                                                 /* Device name */
447         char phys[64];                                                  /* Device physical location */
448         char uniq[64];                                                  /* Device unique identifier (serial #) */
449
450         void *driver_data;
451
452         /* temporary hid_ff handling (until moved to the drivers) */
453         int (*ff_init)(struct hid_device *);
454
455         /* hiddev event handler */
456         int (*hiddev_connect)(struct hid_device *, unsigned int);
457         void (*hiddev_hid_event) (struct hid_device *, struct hid_field *field,
458                                   struct hid_usage *, __s32);
459         void (*hiddev_report_event) (struct hid_device *, struct hid_report *);
460
461         /* handler for raw output data, used by hidraw */
462         int (*hid_output_raw_report) (struct hid_device *, __u8 *, size_t);
463 };
464
465 static inline void *hid_get_drvdata(struct hid_device *hdev)
466 {
467         return dev_get_drvdata(&hdev->dev);
468 }
469
470 static inline void hid_set_drvdata(struct hid_device *hdev, void *data)
471 {
472         dev_set_drvdata(&hdev->dev, data);
473 }
474
475 #define HID_GLOBAL_STACK_SIZE 4
476 #define HID_COLLECTION_STACK_SIZE 4
477
478 struct hid_parser {
479         struct hid_global     global;
480         struct hid_global     global_stack[HID_GLOBAL_STACK_SIZE];
481         unsigned              global_stack_ptr;
482         struct hid_local      local;
483         unsigned              collection_stack[HID_COLLECTION_STACK_SIZE];
484         unsigned              collection_stack_ptr;
485         struct hid_device    *device;
486 };
487
488 struct hid_class_descriptor {
489         __u8  bDescriptorType;
490         __le16 wDescriptorLength;
491 } __attribute__ ((packed));
492
493 struct hid_descriptor {
494         __u8  bLength;
495         __u8  bDescriptorType;
496         __le16 bcdHID;
497         __u8  bCountryCode;
498         __u8  bNumDescriptors;
499
500         struct hid_class_descriptor desc[1];
501 } __attribute__ ((packed));
502
503 #define HID_DEVICE(b, ven, prod) \
504         .bus = (b), \
505         .vendor = (ven), .product = (prod)
506
507 #define HID_USB_DEVICE(ven, prod)       HID_DEVICE(BUS_USB, ven, prod)
508 #define HID_BLUETOOTH_DEVICE(ven, prod) HID_DEVICE(BUS_BLUETOOTH, ven, prod)
509
510 #define HID_REPORT_ID(rep) \
511         .report_type = (rep)
512 #define HID_USAGE_ID(uhid, utype, ucode) \
513         .usage_hid = (uhid), .usage_type = (utype), .usage_code = (ucode)
514 /* we don't want to catch types and codes equal to 0 */
515 #define HID_TERMINATOR          (HID_ANY_ID - 1)
516
517 struct hid_report_id {
518         __u32 report_type;
519 };
520 struct hid_usage_id {
521         __u32 usage_hid;
522         __u32 usage_type;
523         __u32 usage_code;
524 };
525
526 /**
527  * struct hid_driver
528  * @name: driver name (e.g. "Footech_bar-wheel")
529  * @id_table: which devices is this driver for (must be non-NULL for probe
530  *            to be called)
531  * @probe: new device inserted
532  * @remove: device removed (NULL if not a hot-plug capable driver)
533  * @report_table: on which reports to call raw_event (NULL means all)
534  * @raw_event: if report in report_table, this hook is called (NULL means nop)
535  * @usage_table: on which events to call event (NULL means all)
536  * @event: if usage in usage_table, this hook is called (NULL means nop)
537  * @report_fixup: called before report descriptor parsing (NULL means nop)
538  * @input_mapping: invoked on input registering before mapping an usage
539  * @input_mapped: invoked on input registering after mapping an usage
540  *
541  * raw_event and event should return 0 on no action performed, 1 when no
542  * further processing should be done and negative on error
543  *
544  * input_mapping shall return a negative value to completely ignore this usage
545  * (e.g. doubled or invalid usage), zero to continue with parsing of this
546  * usage by generic code (no special handling needed) or positive to skip
547  * generic parsing (needed special handling which was done in the hook already)
548  * input_mapped shall return negative to inform the layer that this usage
549  * should not be considered for further processing or zero to notify that
550  * no processing was performed and should be done in a generic manner
551  * Both these functions may be NULL which means the same behavior as returning
552  * zero from them.
553  */
554 struct hid_driver {
555         char *name;
556         const struct hid_device_id *id_table;
557
558         int (*probe)(struct hid_device *dev, const struct hid_device_id *id);
559         void (*remove)(struct hid_device *dev);
560
561         const struct hid_report_id *report_table;
562         int (*raw_event)(struct hid_device *hdev, struct hid_report *report,
563                         u8 *data, int size);
564         const struct hid_usage_id *usage_table;
565         int (*event)(struct hid_device *hdev, struct hid_field *field,
566                         struct hid_usage *usage, __s32 value);
567
568         void (*report_fixup)(struct hid_device *hdev, __u8 *buf,
569                         unsigned int size);
570
571         int (*input_mapping)(struct hid_device *hdev,
572                         struct hid_input *hidinput, struct hid_field *field,
573                         struct hid_usage *usage, unsigned long **bit, int *max);
574         int (*input_mapped)(struct hid_device *hdev,
575                         struct hid_input *hidinput, struct hid_field *field,
576                         struct hid_usage *usage, unsigned long **bit, int *max);
577 /* private: */
578         struct device_driver driver;
579 };
580
581 /**
582  * hid_ll_driver - low level driver callbacks
583  * @start: called on probe to start the device
584  * @stop: called on remove
585  * @open: called by input layer on open
586  * @close: called by input layer on close
587  * @hidinput_input_event: event input event (e.g. ff or leds)
588  * @parse: this method is called only once to parse the device data,
589  *         shouldn't allocate anything to not leak memory
590  */
591 struct hid_ll_driver {
592         int (*start)(struct hid_device *hdev);
593         void (*stop)(struct hid_device *hdev);
594
595         int (*open)(struct hid_device *hdev);
596         void (*close)(struct hid_device *hdev);
597
598         int (*hidinput_input_event) (struct input_dev *idev, unsigned int type,
599                         unsigned int code, int value);
600
601         int (*parse)(struct hid_device *hdev);
602 };
603
604 /* Applications from HID Usage Tables 4/8/99 Version 1.1 */
605 /* We ignore a few input applications that are not widely used */
606 #define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001) || (a == 0x000d0002))
607
608 /* HID core API */
609
610 #ifdef CONFIG_HID_DEBUG
611 extern int hid_debug;
612 #endif
613
614 extern int hid_add_device(struct hid_device *);
615 extern void hid_destroy_device(struct hid_device *);
616
617 extern int __must_check __hid_register_driver(struct hid_driver *,
618                 struct module *, const char *mod_name);
619 static inline int __must_check hid_register_driver(struct hid_driver *driver)
620 {
621         return __hid_register_driver(driver, THIS_MODULE, KBUILD_MODNAME);
622 }
623 extern void hid_unregister_driver(struct hid_driver *);
624
625 extern void hidinput_hid_event(struct hid_device *, struct hid_field *, struct hid_usage *, __s32);
626 extern void hidinput_report_event(struct hid_device *hid, struct hid_report *report);
627 extern int hidinput_connect(struct hid_device *hid, unsigned int force);
628 extern void hidinput_disconnect(struct hid_device *);
629
630 int hid_set_field(struct hid_field *, unsigned, __s32);
631 int hid_input_report(struct hid_device *, int type, u8 *, int, int);
632 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field);
633 void hid_output_report(struct hid_report *report, __u8 *data);
634 struct hid_device *hid_allocate_device(void);
635 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
636 int hid_connect(struct hid_device *hid, unsigned int connect_mask);
637
638 /**
639  * hid_map_usage - map usage input bits
640  *
641  * @hidinput: hidinput which we are interested in
642  * @usage: usage to fill in
643  * @bit: pointer to input->{}bit (out parameter)
644  * @max: maximal valid usage->code to consider later (out parameter)
645  * @type: input event type (EV_KEY, EV_REL, ...)
646  * @c: code which corresponds to this usage and type
647  */
648 static inline void hid_map_usage(struct hid_input *hidinput,
649                 struct hid_usage *usage, unsigned long **bit, int *max,
650                 __u8 type, __u16 c)
651 {
652         struct input_dev *input = hidinput->input;
653
654         usage->type = type;
655         usage->code = c;
656
657         switch (type) {
658         case EV_ABS:
659                 *bit = input->absbit;
660                 *max = ABS_MAX;
661                 break;
662         case EV_REL:
663                 *bit = input->relbit;
664                 *max = REL_MAX;
665                 break;
666         case EV_KEY:
667                 *bit = input->keybit;
668                 *max = KEY_MAX;
669                 break;
670         case EV_LED:
671                 *bit = input->ledbit;
672                 *max = LED_MAX;
673                 break;
674         }
675 }
676
677 /**
678  * hid_map_usage_clear - map usage input bits and clear the input bit
679  *
680  * The same as hid_map_usage, except the @c bit is also cleared in supported
681  * bits (@bit).
682  */
683 static inline void hid_map_usage_clear(struct hid_input *hidinput,
684                 struct hid_usage *usage, unsigned long **bit, int *max,
685                 __u8 type, __u16 c)
686 {
687         hid_map_usage(hidinput, usage, bit, max, type, c);
688         clear_bit(c, *bit);
689 }
690
691 /**
692  * hid_parse - parse HW reports
693  *
694  * @hdev: hid device
695  *
696  * Call this from probe after you set up the device (if needed). Your
697  * report_fixup will be called (if non-NULL) after reading raw report from
698  * device before passing it to hid layer for real parsing.
699  */
700 static inline int __must_check hid_parse(struct hid_device *hdev)
701 {
702         int ret;
703
704         if (hdev->status & HID_STAT_PARSED)
705                 return 0;
706
707         ret = hdev->ll_driver->parse(hdev);
708         if (!ret)
709                 hdev->status |= HID_STAT_PARSED;
710
711         return ret;
712 }
713
714 /**
715  * hid_hw_start - start underlaying HW
716  *
717  * @hdev: hid device
718  * @connect_mask: which outputs to connect, see HID_CONNECT_*
719  *
720  * Call this in probe function *after* hid_parse. This will setup HW buffers
721  * and start the device (if not deffered to device open). hid_hw_stop must be
722  * called if this was successfull.
723  */
724 static inline int __must_check hid_hw_start(struct hid_device *hdev,
725                 unsigned int connect_mask)
726 {
727         int ret = hdev->ll_driver->start(hdev);
728         if (ret || !connect_mask)
729                 return ret;
730         ret = hid_connect(hdev, connect_mask);
731         if (ret)
732                 hdev->ll_driver->stop(hdev);
733         return ret;
734 }
735
736 /**
737  * hid_hw_stop - stop underlaying HW
738  *
739  * @hdev: hid device
740  *
741  * This is usually called from remove function or from probe when something
742  * failed and hid_hw_start was called already.
743  */
744 static inline void hid_hw_stop(struct hid_device *hdev)
745 {
746         hdev->ll_driver->stop(hdev);
747 }
748
749 void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
750                 int interrupt);
751
752 extern int hid_generic_init(void);
753 extern void hid_generic_exit(void);
754
755 /* HID quirks API */
756 u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct);
757 int usbhid_quirks_init(char **quirks_param);
758 void usbhid_quirks_exit(void);
759
760 #ifdef CONFIG_HID_FF
761 int hid_ff_init(struct hid_device *hid);
762
763 int hid_lgff_init(struct hid_device *hid);
764 int hid_lg2ff_init(struct hid_device *hid);
765 int hid_plff_init(struct hid_device *hid);
766 int hid_tmff_init(struct hid_device *hid);
767 int hid_zpff_init(struct hid_device *hid);
768 #ifdef CONFIG_HID_PID
769 int hid_pidff_init(struct hid_device *hid);
770 #else
771 static inline int hid_pidff_init(struct hid_device *hid) { return -ENODEV; }
772 #endif
773
774 #else
775 #define hid_ff_init     NULL
776 #endif
777
778 #ifdef CONFIG_HID_DEBUG
779 #define dbg_hid(format, arg...) if (hid_debug) \
780                                 printk(KERN_DEBUG "%s: " format ,\
781                                 __FILE__ , ## arg)
782 #define dbg_hid_line(format, arg...) if (hid_debug) \
783                                 printk(format, ## arg)
784 #else
785 static inline int __attribute__((format(printf, 1, 2)))
786 dbg_hid(const char *fmt, ...)
787 {
788         return 0;
789 }
790 #define dbg_hid_line dbg_hid
791 #endif /* HID_DEBUG */
792
793 #define err_hid(format, arg...) printk(KERN_ERR "%s: " format "\n" , \
794                 __FILE__ , ## arg)
795 #endif /* HID_FF */
796
797 #ifdef CONFIG_HID_COMPAT
798 #define HID_COMPAT_LOAD_DRIVER(name)    \
799 void hid_compat_##name(void) { }        \
800 EXPORT_SYMBOL(hid_compat_##name)
801 #else
802 #define HID_COMPAT_LOAD_DRIVER(name)
803 #endif /* HID_COMPAT */
804 #define HID_COMPAT_CALL_DRIVER(name)    do {    \
805         extern void hid_compat_##name(void);    \
806         hid_compat_##name();                    \
807 } while (0)
808
809 #endif
810