2 * HID support for Linux
4 * Copyright (c) 1999 Andreas Gal
5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
7 * Copyright (c) 2006-2007 Jiri Kosina
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the Free
13 * Software Foundation; either version 2 of the License, or (at your option)
17 #include <linux/module.h>
18 #include <linux/slab.h>
19 #include <linux/init.h>
20 #include <linux/kernel.h>
21 #include <linux/list.h>
23 #include <linux/spinlock.h>
24 #include <asm/unaligned.h>
25 #include <asm/byteorder.h>
26 #include <linux/input.h>
27 #include <linux/wait.h>
28 #include <linux/vmalloc.h>
29 #include <linux/sched.h>
31 #include <linux/hid.h>
32 #include <linux/hiddev.h>
33 #include <linux/hid-debug.h>
34 #include <linux/hidraw.h>
42 #define DRIVER_VERSION "v2.6"
43 #define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik, Jiri Kosina"
44 #define DRIVER_DESC "HID core driver"
45 #define DRIVER_LICENSE "GPL"
47 #ifdef CONFIG_HID_DEBUG
49 module_param_named(debug
, hid_debug
, int, 0600);
50 MODULE_PARM_DESC(debug
, "HID debugging (0=off, 1=probing info, 2=continuous data dumping)");
51 EXPORT_SYMBOL_GPL(hid_debug
);
55 * Register a new report for a device.
58 static struct hid_report
*hid_register_report(struct hid_device
*device
, unsigned type
, unsigned id
)
60 struct hid_report_enum
*report_enum
= device
->report_enum
+ type
;
61 struct hid_report
*report
;
63 if (report_enum
->report_id_hash
[id
])
64 return report_enum
->report_id_hash
[id
];
66 if (!(report
= kzalloc(sizeof(struct hid_report
), GFP_KERNEL
)))
70 report_enum
->numbered
= 1;
75 report
->device
= device
;
76 report_enum
->report_id_hash
[id
] = report
;
78 list_add_tail(&report
->list
, &report_enum
->report_list
);
84 * Register a new field for this report.
87 static struct hid_field
*hid_register_field(struct hid_report
*report
, unsigned usages
, unsigned values
)
89 struct hid_field
*field
;
91 if (report
->maxfield
== HID_MAX_FIELDS
) {
92 dbg_hid("too many fields in report\n");
96 if (!(field
= kzalloc(sizeof(struct hid_field
) + usages
* sizeof(struct hid_usage
)
97 + values
* sizeof(unsigned), GFP_KERNEL
))) return NULL
;
99 field
->index
= report
->maxfield
++;
100 report
->field
[field
->index
] = field
;
101 field
->usage
= (struct hid_usage
*)(field
+ 1);
102 field
->value
= (s32
*)(field
->usage
+ usages
);
103 field
->report
= report
;
109 * Open a collection. The type/usage is pushed on the stack.
112 static int open_collection(struct hid_parser
*parser
, unsigned type
)
114 struct hid_collection
*collection
;
117 usage
= parser
->local
.usage
[0];
119 if (parser
->collection_stack_ptr
== HID_COLLECTION_STACK_SIZE
) {
120 dbg_hid("collection stack overflow\n");
124 if (parser
->device
->maxcollection
== parser
->device
->collection_size
) {
125 collection
= kmalloc(sizeof(struct hid_collection
) *
126 parser
->device
->collection_size
* 2, GFP_KERNEL
);
127 if (collection
== NULL
) {
128 dbg_hid("failed to reallocate collection array\n");
131 memcpy(collection
, parser
->device
->collection
,
132 sizeof(struct hid_collection
) *
133 parser
->device
->collection_size
);
134 memset(collection
+ parser
->device
->collection_size
, 0,
135 sizeof(struct hid_collection
) *
136 parser
->device
->collection_size
);
137 kfree(parser
->device
->collection
);
138 parser
->device
->collection
= collection
;
139 parser
->device
->collection_size
*= 2;
142 parser
->collection_stack
[parser
->collection_stack_ptr
++] =
143 parser
->device
->maxcollection
;
145 collection
= parser
->device
->collection
+
146 parser
->device
->maxcollection
++;
147 collection
->type
= type
;
148 collection
->usage
= usage
;
149 collection
->level
= parser
->collection_stack_ptr
- 1;
151 if (type
== HID_COLLECTION_APPLICATION
)
152 parser
->device
->maxapplication
++;
158 * Close a collection.
161 static int close_collection(struct hid_parser
*parser
)
163 if (!parser
->collection_stack_ptr
) {
164 dbg_hid("collection stack underflow\n");
167 parser
->collection_stack_ptr
--;
172 * Climb up the stack, search for the specified collection type
173 * and return the usage.
176 static unsigned hid_lookup_collection(struct hid_parser
*parser
, unsigned type
)
179 for (n
= parser
->collection_stack_ptr
- 1; n
>= 0; n
--)
180 if (parser
->device
->collection
[parser
->collection_stack
[n
]].type
== type
)
181 return parser
->device
->collection
[parser
->collection_stack
[n
]].usage
;
182 return 0; /* we know nothing about this usage type */
186 * Add a usage to the temporary parser table.
189 static int hid_add_usage(struct hid_parser
*parser
, unsigned usage
)
191 if (parser
->local
.usage_index
>= HID_MAX_USAGES
) {
192 dbg_hid("usage index exceeded\n");
195 parser
->local
.usage
[parser
->local
.usage_index
] = usage
;
196 parser
->local
.collection_index
[parser
->local
.usage_index
] =
197 parser
->collection_stack_ptr
?
198 parser
->collection_stack
[parser
->collection_stack_ptr
- 1] : 0;
199 parser
->local
.usage_index
++;
204 * Register a new field for this report.
207 static int hid_add_field(struct hid_parser
*parser
, unsigned report_type
, unsigned flags
)
209 struct hid_report
*report
;
210 struct hid_field
*field
;
215 if (!(report
= hid_register_report(parser
->device
, report_type
, parser
->global
.report_id
))) {
216 dbg_hid("hid_register_report failed\n");
220 if (parser
->global
.logical_maximum
< parser
->global
.logical_minimum
) {
221 dbg_hid("logical range invalid %d %d\n", parser
->global
.logical_minimum
, parser
->global
.logical_maximum
);
225 offset
= report
->size
;
226 report
->size
+= parser
->global
.report_size
* parser
->global
.report_count
;
228 if (!parser
->local
.usage_index
) /* Ignore padding fields */
231 usages
= max_t(int, parser
->local
.usage_index
, parser
->global
.report_count
);
233 if ((field
= hid_register_field(report
, usages
, parser
->global
.report_count
)) == NULL
)
236 field
->physical
= hid_lookup_collection(parser
, HID_COLLECTION_PHYSICAL
);
237 field
->logical
= hid_lookup_collection(parser
, HID_COLLECTION_LOGICAL
);
238 field
->application
= hid_lookup_collection(parser
, HID_COLLECTION_APPLICATION
);
240 for (i
= 0; i
< usages
; i
++) {
242 /* Duplicate the last usage we parsed if we have excess values */
243 if (i
>= parser
->local
.usage_index
)
244 j
= parser
->local
.usage_index
- 1;
245 field
->usage
[i
].hid
= parser
->local
.usage
[j
];
246 field
->usage
[i
].collection_index
=
247 parser
->local
.collection_index
[j
];
250 field
->maxusage
= usages
;
251 field
->flags
= flags
;
252 field
->report_offset
= offset
;
253 field
->report_type
= report_type
;
254 field
->report_size
= parser
->global
.report_size
;
255 field
->report_count
= parser
->global
.report_count
;
256 field
->logical_minimum
= parser
->global
.logical_minimum
;
257 field
->logical_maximum
= parser
->global
.logical_maximum
;
258 field
->physical_minimum
= parser
->global
.physical_minimum
;
259 field
->physical_maximum
= parser
->global
.physical_maximum
;
260 field
->unit_exponent
= parser
->global
.unit_exponent
;
261 field
->unit
= parser
->global
.unit
;
267 * Read data value from item.
270 static u32
item_udata(struct hid_item
*item
)
272 switch (item
->size
) {
273 case 1: return item
->data
.u8
;
274 case 2: return item
->data
.u16
;
275 case 4: return item
->data
.u32
;
280 static s32
item_sdata(struct hid_item
*item
)
282 switch (item
->size
) {
283 case 1: return item
->data
.s8
;
284 case 2: return item
->data
.s16
;
285 case 4: return item
->data
.s32
;
291 * Process a global item.
294 static int hid_parser_global(struct hid_parser
*parser
, struct hid_item
*item
)
298 case HID_GLOBAL_ITEM_TAG_PUSH
:
300 if (parser
->global_stack_ptr
== HID_GLOBAL_STACK_SIZE
) {
301 dbg_hid("global enviroment stack overflow\n");
305 memcpy(parser
->global_stack
+ parser
->global_stack_ptr
++,
306 &parser
->global
, sizeof(struct hid_global
));
309 case HID_GLOBAL_ITEM_TAG_POP
:
311 if (!parser
->global_stack_ptr
) {
312 dbg_hid("global enviroment stack underflow\n");
316 memcpy(&parser
->global
, parser
->global_stack
+ --parser
->global_stack_ptr
,
317 sizeof(struct hid_global
));
320 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE
:
321 parser
->global
.usage_page
= item_udata(item
);
324 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM
:
325 parser
->global
.logical_minimum
= item_sdata(item
);
328 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM
:
329 if (parser
->global
.logical_minimum
< 0)
330 parser
->global
.logical_maximum
= item_sdata(item
);
332 parser
->global
.logical_maximum
= item_udata(item
);
335 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM
:
336 parser
->global
.physical_minimum
= item_sdata(item
);
339 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM
:
340 if (parser
->global
.physical_minimum
< 0)
341 parser
->global
.physical_maximum
= item_sdata(item
);
343 parser
->global
.physical_maximum
= item_udata(item
);
346 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT
:
347 parser
->global
.unit_exponent
= item_sdata(item
);
350 case HID_GLOBAL_ITEM_TAG_UNIT
:
351 parser
->global
.unit
= item_udata(item
);
354 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE
:
355 if ((parser
->global
.report_size
= item_udata(item
)) > 32) {
356 dbg_hid("invalid report_size %d\n", parser
->global
.report_size
);
361 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT
:
362 if ((parser
->global
.report_count
= item_udata(item
)) > HID_MAX_USAGES
) {
363 dbg_hid("invalid report_count %d\n", parser
->global
.report_count
);
368 case HID_GLOBAL_ITEM_TAG_REPORT_ID
:
369 if ((parser
->global
.report_id
= item_udata(item
)) == 0) {
370 dbg_hid("report_id 0 is invalid\n");
376 dbg_hid("unknown global tag 0x%x\n", item
->tag
);
382 * Process a local item.
385 static int hid_parser_local(struct hid_parser
*parser
, struct hid_item
*item
)
390 if (item
->size
== 0) {
391 dbg_hid("item data expected for local item\n");
395 data
= item_udata(item
);
399 case HID_LOCAL_ITEM_TAG_DELIMITER
:
403 * We treat items before the first delimiter
404 * as global to all usage sets (branch 0).
405 * In the moment we process only these global
406 * items and the first delimiter set.
408 if (parser
->local
.delimiter_depth
!= 0) {
409 dbg_hid("nested delimiters\n");
412 parser
->local
.delimiter_depth
++;
413 parser
->local
.delimiter_branch
++;
415 if (parser
->local
.delimiter_depth
< 1) {
416 dbg_hid("bogus close delimiter\n");
419 parser
->local
.delimiter_depth
--;
423 case HID_LOCAL_ITEM_TAG_USAGE
:
425 if (parser
->local
.delimiter_branch
> 1) {
426 dbg_hid("alternative usage ignored\n");
431 data
= (parser
->global
.usage_page
<< 16) + data
;
433 return hid_add_usage(parser
, data
);
435 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM
:
437 if (parser
->local
.delimiter_branch
> 1) {
438 dbg_hid("alternative usage ignored\n");
443 data
= (parser
->global
.usage_page
<< 16) + data
;
445 parser
->local
.usage_minimum
= data
;
448 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM
:
450 if (parser
->local
.delimiter_branch
> 1) {
451 dbg_hid("alternative usage ignored\n");
456 data
= (parser
->global
.usage_page
<< 16) + data
;
458 for (n
= parser
->local
.usage_minimum
; n
<= data
; n
++)
459 if (hid_add_usage(parser
, n
)) {
460 dbg_hid("hid_add_usage failed\n");
467 dbg_hid("unknown local item tag 0x%x\n", item
->tag
);
474 * Process a main item.
477 static int hid_parser_main(struct hid_parser
*parser
, struct hid_item
*item
)
482 data
= item_udata(item
);
485 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION
:
486 ret
= open_collection(parser
, data
& 0xff);
488 case HID_MAIN_ITEM_TAG_END_COLLECTION
:
489 ret
= close_collection(parser
);
491 case HID_MAIN_ITEM_TAG_INPUT
:
492 ret
= hid_add_field(parser
, HID_INPUT_REPORT
, data
);
494 case HID_MAIN_ITEM_TAG_OUTPUT
:
495 ret
= hid_add_field(parser
, HID_OUTPUT_REPORT
, data
);
497 case HID_MAIN_ITEM_TAG_FEATURE
:
498 ret
= hid_add_field(parser
, HID_FEATURE_REPORT
, data
);
501 dbg_hid("unknown main item tag 0x%x\n", item
->tag
);
505 memset(&parser
->local
, 0, sizeof(parser
->local
)); /* Reset the local parser environment */
511 * Process a reserved item.
514 static int hid_parser_reserved(struct hid_parser
*parser
, struct hid_item
*item
)
516 dbg_hid("reserved item type, tag 0x%x\n", item
->tag
);
521 * Free a report and all registered fields. The field->usage and
522 * field->value table's are allocated behind the field, so we need
523 * only to free(field) itself.
526 static void hid_free_report(struct hid_report
*report
)
530 for (n
= 0; n
< report
->maxfield
; n
++)
531 kfree(report
->field
[n
]);
536 * Free a device structure, all reports, and all fields.
539 static void hid_device_release(struct device
*dev
)
541 struct hid_device
*device
= container_of(dev
, struct hid_device
, dev
);
544 for (i
= 0; i
< HID_REPORT_TYPES
; i
++) {
545 struct hid_report_enum
*report_enum
= device
->report_enum
+ i
;
547 for (j
= 0; j
< 256; j
++) {
548 struct hid_report
*report
= report_enum
->report_id_hash
[j
];
550 hid_free_report(report
);
554 kfree(device
->rdesc
);
555 kfree(device
->collection
);
560 * Fetch a report description item from the data stream. We support long
561 * items, though they are not used yet.
564 static u8
*fetch_item(__u8
*start
, __u8
*end
, struct hid_item
*item
)
568 if ((end
- start
) <= 0)
573 item
->type
= (b
>> 2) & 3;
574 item
->tag
= (b
>> 4) & 15;
576 if (item
->tag
== HID_ITEM_TAG_LONG
) {
578 item
->format
= HID_ITEM_FORMAT_LONG
;
580 if ((end
- start
) < 2)
583 item
->size
= *start
++;
584 item
->tag
= *start
++;
586 if ((end
- start
) < item
->size
)
589 item
->data
.longdata
= start
;
594 item
->format
= HID_ITEM_FORMAT_SHORT
;
597 switch (item
->size
) {
603 if ((end
- start
) < 1)
605 item
->data
.u8
= *start
++;
609 if ((end
- start
) < 2)
611 item
->data
.u16
= get_unaligned_le16(start
);
612 start
= (__u8
*)((__le16
*)start
+ 1);
617 if ((end
- start
) < 4)
619 item
->data
.u32
= get_unaligned_le32(start
);
620 start
= (__u8
*)((__le32
*)start
+ 1);
628 * hid_parse_report - parse device report
630 * @device: hid device
631 * @start: report start
634 * Parse a report description into a hid_device structure. Reports are
635 * enumerated, fields are attached to these reports.
636 * 0 returned on success, otherwise nonzero error value.
638 int hid_parse_report(struct hid_device
*device
, __u8
*start
,
641 struct hid_parser
*parser
;
642 struct hid_item item
;
645 static int (*dispatch_type
[])(struct hid_parser
*parser
,
646 struct hid_item
*item
) = {
653 if (device
->driver
->report_fixup
)
654 device
->driver
->report_fixup(device
, start
, size
);
656 device
->rdesc
= kmalloc(size
, GFP_KERNEL
);
657 if (device
->rdesc
== NULL
)
659 memcpy(device
->rdesc
, start
, size
);
660 device
->rsize
= size
;
662 parser
= vmalloc(sizeof(struct hid_parser
));
668 memset(parser
, 0, sizeof(struct hid_parser
));
669 parser
->device
= device
;
673 while ((start
= fetch_item(start
, end
, &item
)) != NULL
) {
675 if (item
.format
!= HID_ITEM_FORMAT_SHORT
) {
676 dbg_hid("unexpected long global item\n");
680 if (dispatch_type
[item
.type
](parser
, &item
)) {
681 dbg_hid("item %u %u %u %u parsing failed\n",
682 item
.format
, (unsigned)item
.size
, (unsigned)item
.type
, (unsigned)item
.tag
);
687 if (parser
->collection_stack_ptr
) {
688 dbg_hid("unbalanced collection at end of report description\n");
691 if (parser
->local
.delimiter_depth
) {
692 dbg_hid("unbalanced delimiter at end of report description\n");
700 dbg_hid("item fetching failed at offset %d\n", (int)(end
- start
));
705 EXPORT_SYMBOL_GPL(hid_parse_report
);
708 * Convert a signed n-bit integer to signed 32-bit integer. Common
709 * cases are done through the compiler, the screwed things has to be
713 static s32
snto32(__u32 value
, unsigned n
)
716 case 8: return ((__s8
)value
);
717 case 16: return ((__s16
)value
);
718 case 32: return ((__s32
)value
);
720 return value
& (1 << (n
- 1)) ? value
| (-1 << n
) : value
;
724 * Convert a signed 32-bit integer to a signed n-bit integer.
727 static u32
s32ton(__s32 value
, unsigned n
)
729 s32 a
= value
>> (n
- 1);
731 return value
< 0 ? 1 << (n
- 1) : (1 << (n
- 1)) - 1;
732 return value
& ((1 << n
) - 1);
736 * Extract/implement a data field from/to a little endian report (bit array).
738 * Code sort-of follows HID spec:
739 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf
741 * While the USB HID spec allows unlimited length bit fields in "report
742 * descriptors", most devices never use more than 16 bits.
743 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
744 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
747 static __inline__ __u32
extract(__u8
*report
, unsigned offset
, unsigned n
)
752 printk(KERN_WARNING
"HID: extract() called with n (%d) > 32! (%s)\n",
755 report
+= offset
>> 3; /* adjust byte index */
756 offset
&= 7; /* now only need bit offset into one byte */
757 x
= get_unaligned_le64(report
);
758 x
= (x
>> offset
) & ((1ULL << n
) - 1); /* extract bit field */
763 * "implement" : set bits in a little endian bit stream.
764 * Same concepts as "extract" (see comments above).
765 * The data mangled in the bit stream remains in little endian
766 * order the whole time. It make more sense to talk about
767 * endianness of register values by considering a register
768 * a "cached" copy of the little endiad bit stream.
770 static __inline__
void implement(__u8
*report
, unsigned offset
, unsigned n
, __u32 value
)
773 u64 m
= (1ULL << n
) - 1;
776 printk(KERN_WARNING
"HID: implement() called with n (%d) > 32! (%s)\n",
780 printk(KERN_WARNING
"HID: implement() called with too large value %d! (%s)\n",
781 value
, current
->comm
);
785 report
+= offset
>> 3;
788 x
= get_unaligned_le64(report
);
790 x
|= ((u64
)value
) << offset
;
791 put_unaligned_le64(x
, report
);
795 * Search an array for a value.
798 static __inline__
int search(__s32
*array
, __s32 value
, unsigned n
)
801 if (*array
++ == value
)
808 * hid_match_report - check if driver's raw_event should be called
811 * @report_type: type to match against
813 * compare hid->driver->report_table->report_type to report->type
815 static int hid_match_report(struct hid_device
*hid
, struct hid_report
*report
)
817 const struct hid_report_id
*id
= hid
->driver
->report_table
;
819 if (!id
) /* NULL means all */
822 for (; id
->report_type
!= HID_TERMINATOR
; id
++)
823 if (id
->report_type
== HID_ANY_ID
||
824 id
->report_type
== report
->type
)
830 * hid_match_usage - check if driver's event should be called
833 * @usage: usage to match against
835 * compare hid->driver->usage_table->usage_{type,code} to
836 * usage->usage_{type,code}
838 static int hid_match_usage(struct hid_device
*hid
, struct hid_usage
*usage
)
840 const struct hid_usage_id
*id
= hid
->driver
->usage_table
;
842 if (!id
) /* NULL means all */
845 for (; id
->usage_type
!= HID_ANY_ID
- 1; id
++)
846 if ((id
->usage_hid
== HID_ANY_ID
||
847 id
->usage_hid
== usage
->hid
) &&
848 (id
->usage_type
== HID_ANY_ID
||
849 id
->usage_type
== usage
->type
) &&
850 (id
->usage_code
== HID_ANY_ID
||
851 id
->usage_code
== usage
->code
))
856 static void hid_process_event(struct hid_device
*hid
, struct hid_field
*field
,
857 struct hid_usage
*usage
, __s32 value
, int interrupt
)
859 struct hid_driver
*hdrv
= hid
->driver
;
862 hid_dump_input(usage
, value
);
864 if (hdrv
&& hdrv
->event
&& hid_match_usage(hid
, usage
)) {
865 ret
= hdrv
->event(hid
, field
, usage
, value
);
868 dbg_hid("%s's event failed with %d\n",
874 if (hid
->claimed
& HID_CLAIMED_INPUT
)
875 hidinput_hid_event(hid
, field
, usage
, value
);
876 if (hid
->claimed
& HID_CLAIMED_HIDDEV
&& interrupt
&& hid
->hiddev_hid_event
)
877 hid
->hiddev_hid_event(hid
, field
, usage
, value
);
881 * Analyse a received field, and fetch the data from it. The field
882 * content is stored for next report processing (we do differential
883 * reporting to the layer).
886 static void hid_input_field(struct hid_device
*hid
, struct hid_field
*field
,
887 __u8
*data
, int interrupt
)
890 unsigned count
= field
->report_count
;
891 unsigned offset
= field
->report_offset
;
892 unsigned size
= field
->report_size
;
893 __s32 min
= field
->logical_minimum
;
894 __s32 max
= field
->logical_maximum
;
897 if (!(value
= kmalloc(sizeof(__s32
) * count
, GFP_ATOMIC
)))
900 for (n
= 0; n
< count
; n
++) {
902 value
[n
] = min
< 0 ? snto32(extract(data
, offset
+ n
* size
, size
), size
) :
903 extract(data
, offset
+ n
* size
, size
);
905 if (!(field
->flags
& HID_MAIN_ITEM_VARIABLE
) /* Ignore report if ErrorRollOver */
906 && value
[n
] >= min
&& value
[n
] <= max
907 && field
->usage
[value
[n
] - min
].hid
== HID_UP_KEYBOARD
+ 1)
911 for (n
= 0; n
< count
; n
++) {
913 if (HID_MAIN_ITEM_VARIABLE
& field
->flags
) {
914 hid_process_event(hid
, field
, &field
->usage
[n
], value
[n
], interrupt
);
918 if (field
->value
[n
] >= min
&& field
->value
[n
] <= max
919 && field
->usage
[field
->value
[n
] - min
].hid
920 && search(value
, field
->value
[n
], count
))
921 hid_process_event(hid
, field
, &field
->usage
[field
->value
[n
] - min
], 0, interrupt
);
923 if (value
[n
] >= min
&& value
[n
] <= max
924 && field
->usage
[value
[n
] - min
].hid
925 && search(field
->value
, value
[n
], count
))
926 hid_process_event(hid
, field
, &field
->usage
[value
[n
] - min
], 1, interrupt
);
929 memcpy(field
->value
, value
, count
* sizeof(__s32
));
935 * Output the field into the report.
938 static void hid_output_field(struct hid_field
*field
, __u8
*data
)
940 unsigned count
= field
->report_count
;
941 unsigned offset
= field
->report_offset
;
942 unsigned size
= field
->report_size
;
943 unsigned bitsused
= offset
+ count
* size
;
946 /* make sure the unused bits in the last byte are zeros */
947 if (count
> 0 && size
> 0 && (bitsused
% 8) != 0)
948 data
[(bitsused
-1)/8] &= (1 << (bitsused
% 8)) - 1;
950 for (n
= 0; n
< count
; n
++) {
951 if (field
->logical_minimum
< 0) /* signed values */
952 implement(data
, offset
+ n
* size
, size
, s32ton(field
->value
[n
], size
));
953 else /* unsigned values */
954 implement(data
, offset
+ n
* size
, size
, field
->value
[n
]);
962 void hid_output_report(struct hid_report
*report
, __u8
*data
)
967 *data
++ = report
->id
;
969 for (n
= 0; n
< report
->maxfield
; n
++)
970 hid_output_field(report
->field
[n
], data
);
972 EXPORT_SYMBOL_GPL(hid_output_report
);
975 * Set a field value. The report this field belongs to has to be
976 * created and transferred to the device, to set this value in the
980 int hid_set_field(struct hid_field
*field
, unsigned offset
, __s32 value
)
982 unsigned size
= field
->report_size
;
984 hid_dump_input(field
->usage
+ offset
, value
);
986 if (offset
>= field
->report_count
) {
987 dbg_hid("offset (%d) exceeds report_count (%d)\n", offset
, field
->report_count
);
988 hid_dump_field(field
, 8);
991 if (field
->logical_minimum
< 0) {
992 if (value
!= snto32(s32ton(value
, size
), size
)) {
993 dbg_hid("value %d is out of range\n", value
);
997 field
->value
[offset
] = value
;
1000 EXPORT_SYMBOL_GPL(hid_set_field
);
1002 static struct hid_report
*hid_get_report(struct hid_report_enum
*report_enum
,
1005 struct hid_report
*report
;
1006 unsigned int n
= 0; /* Normally report number is 0 */
1008 /* Device uses numbered reports, data[0] is report number */
1009 if (report_enum
->numbered
)
1012 report
= report_enum
->report_id_hash
[n
];
1014 dbg_hid("undefined report_id %u received\n", n
);
1019 void hid_report_raw_event(struct hid_device
*hid
, int type
, u8
*data
, int size
,
1022 struct hid_report_enum
*report_enum
= hid
->report_enum
+ type
;
1023 struct hid_report
*report
;
1025 int rsize
, csize
= size
;
1028 report
= hid_get_report(report_enum
, data
);
1032 if (report_enum
->numbered
) {
1037 rsize
= ((report
->size
- 1) >> 3) + 1;
1039 if (csize
< rsize
) {
1040 dbg_hid("report %d is too short, (%d < %d)\n", report
->id
,
1042 memset(cdata
+ csize
, 0, rsize
- csize
);
1045 if ((hid
->claimed
& HID_CLAIMED_HIDDEV
) && hid
->hiddev_report_event
)
1046 hid
->hiddev_report_event(hid
, report
);
1047 if (hid
->claimed
& HID_CLAIMED_HIDRAW
) {
1048 /* numbered reports need to be passed with the report num */
1049 if (report_enum
->numbered
)
1050 hidraw_report_event(hid
, data
- 1, size
+ 1);
1052 hidraw_report_event(hid
, data
, size
);
1055 for (a
= 0; a
< report
->maxfield
; a
++)
1056 hid_input_field(hid
, report
->field
[a
], cdata
, interrupt
);
1058 if (hid
->claimed
& HID_CLAIMED_INPUT
)
1059 hidinput_report_event(hid
, report
);
1061 EXPORT_SYMBOL_GPL(hid_report_raw_event
);
1064 * hid_input_report - report data from lower layer (usb, bt...)
1067 * @type: HID report type (HID_*_REPORT)
1068 * @data: report contents
1069 * @size: size of data parameter
1070 * @interrupt: called from atomic?
1072 * This is data entry for lower layers.
1074 int hid_input_report(struct hid_device
*hid
, int type
, u8
*data
, int size
, int interrupt
)
1076 struct hid_report_enum
*report_enum
= hid
->report_enum
+ type
;
1077 struct hid_driver
*hdrv
= hid
->driver
;
1078 struct hid_report
*report
;
1082 if (!hid
|| !hid
->driver
)
1086 dbg_hid("empty report\n");
1090 dbg_hid("report (size %u) (%snumbered)\n", size
, report_enum
->numbered
? "" : "un");
1092 report
= hid_get_report(report_enum
, data
);
1096 /* dump the report */
1097 dbg_hid("report %d (size %u) = ", report
->id
, size
);
1098 for (i
= 0; i
< size
; i
++)
1099 dbg_hid_line(" %02x", data
[i
]);
1102 if (hdrv
&& hdrv
->raw_event
&& hid_match_report(hid
, report
)) {
1103 ret
= hdrv
->raw_event(hid
, report
, data
, size
);
1105 return ret
< 0 ? ret
: 0;
1108 hid_report_raw_event(hid
, type
, data
, size
, interrupt
);
1112 EXPORT_SYMBOL_GPL(hid_input_report
);
1114 static bool hid_match_one_id(struct hid_device
*hdev
,
1115 const struct hid_device_id
*id
)
1117 return id
->bus
== hdev
->bus
&&
1118 (id
->vendor
== HID_ANY_ID
|| id
->vendor
== hdev
->vendor
) &&
1119 (id
->product
== HID_ANY_ID
|| id
->product
== hdev
->product
);
1122 static const struct hid_device_id
*hid_match_id(struct hid_device
*hdev
,
1123 const struct hid_device_id
*id
)
1125 for (; id
->bus
; id
++)
1126 if (hid_match_one_id(hdev
, id
))
1132 static const struct hid_device_id hid_blacklist
[] = {
1133 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_MX3000_RECEIVER
) },
1134 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_S510_RECEIVER
) },
1135 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_S510_RECEIVER_2
) },
1136 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_LOGITECH_RECEIVER
) },
1137 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_DINOVO_DESKTOP
) },
1138 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_DINOVO_EDGE
) },
1139 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_DINOVO_MINI
) },
1140 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_LOGITECH_KBD
) },
1141 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_LOGITECH_ELITE_KBD
) },
1142 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500
) },
1143 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_LOGITECH_LX3
) },
1144 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_LOGITECH_V150
) },
1145 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_LOGITECH_EXTREME_3D
) },
1146 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH
, USB_DEVICE_ID_LOGITECH_WHEEL
) },
1150 static int hid_bus_match(struct device
*dev
, struct device_driver
*drv
)
1152 struct hid_driver
*hdrv
= container_of(drv
, struct hid_driver
, driver
);
1153 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
1155 if (!hid_match_id(hdev
, hdrv
->id_table
))
1158 /* generic wants all non-blacklisted */
1159 if (!strncmp(hdrv
->name
, "generic-", 8))
1160 return !hid_match_id(hdev
, hid_blacklist
);
1165 static int hid_device_probe(struct device
*dev
)
1167 struct hid_driver
*hdrv
= container_of(dev
->driver
,
1168 struct hid_driver
, driver
);
1169 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
1170 const struct hid_device_id
*id
;
1173 if (!hdev
->driver
) {
1174 id
= hid_match_id(hdev
, hdrv
->id_table
);
1178 hdev
->driver
= hdrv
;
1180 ret
= hdrv
->probe(hdev
, id
);
1181 } else { /* default probe */
1182 ret
= hid_parse(hdev
);
1184 ret
= hid_hw_start(hdev
);
1187 hdev
->driver
= NULL
;
1192 static int hid_device_remove(struct device
*dev
)
1194 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
1195 struct hid_driver
*hdrv
= hdev
->driver
;
1200 else /* default remove */
1202 hdev
->driver
= NULL
;
1208 static int hid_uevent(struct device
*dev
, struct kobj_uevent_env
*env
)
1210 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
1212 if (add_uevent_var(env
, "HID_ID=%04X:%08X:%08X",
1213 hdev
->bus
, hdev
->vendor
, hdev
->product
))
1216 if (add_uevent_var(env
, "HID_NAME=%s", hdev
->name
))
1219 if (add_uevent_var(env
, "HID_PHYS=%s", hdev
->phys
))
1222 if (add_uevent_var(env
, "HID_UNIQ=%s", hdev
->uniq
))
1225 if (add_uevent_var(env
, "MODALIAS=hid:b%04Xv%08Xp%08X",
1226 hdev
->bus
, hdev
->vendor
, hdev
->product
))
1232 static struct bus_type hid_bus_type
= {
1234 .match
= hid_bus_match
,
1235 .probe
= hid_device_probe
,
1236 .remove
= hid_device_remove
,
1237 .uevent
= hid_uevent
,
1240 static const struct hid_device_id hid_ignore_list
[] = {
1241 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD
, USB_DEVICE_ID_ACECAD_FLAIR
) },
1242 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD
, USB_DEVICE_ID_ACECAD_302
) },
1243 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH
, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X
) },
1244 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_01
) },
1245 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_10
) },
1246 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_20
) },
1247 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_21
) },
1248 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_22
) },
1249 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_23
) },
1250 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_24
) },
1251 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE
, USB_DEVICE_ID_AIRCABLE1
) },
1252 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR
, USB_DEVICE_ID_ALCOR_USBRS232
) },
1253 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS
, USB_DEVICE_ID_ASUS_LCM
)},
1254 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE
, USB_DEVICE_ID_BERKSHIRE_PCWD
) },
1255 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC
, 0x0103) },
1256 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL
, USB_DEVICE_ID_CYGNAL_RADIO_SI470X
) },
1257 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA
, USB_DEVICE_ID_CM109
) },
1258 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS
, USB_DEVICE_ID_CYPRESS_HIDCOM
) },
1259 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS
, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE
) },
1260 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME
, USB_DEVICE_ID_DELORME_EARTHMATE
) },
1261 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME
, USB_DEVICE_ID_DELORME_EM_LT20
) },
1262 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY
, USB_DEVICE_ID_ESSENTIAL_REALITY_P5
) },
1263 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
, 0x0001) },
1264 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
, 0x0002) },
1265 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
, 0x0003) },
1266 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
, 0x0004) },
1267 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_4_PHIDGETSERVO_30
) },
1268 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_1_PHIDGETSERVO_30
) },
1269 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_0_0_4_IF_KIT
) },
1270 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_0_16_16_IF_KIT
) },
1271 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_8_8_8_IF_KIT
) },
1272 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_0_8_7_IF_KIT
) },
1273 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_0_8_8_IF_KIT
) },
1274 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_PHIDGET_MOTORCONTROL
) },
1275 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP
, USB_DEVICE_ID_SUPER_Q2
) },
1276 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP
, USB_DEVICE_ID_GOGOPEN
) },
1277 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP
, USB_DEVICE_ID_PENPOWER
) },
1278 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH
, USB_DEVICE_ID_GRETAGMACBETH_HUEY
) },
1279 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN
, USB_DEVICE_ID_POWERMATE
) },
1280 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN
, USB_DEVICE_ID_SOUNDKNOB
) },
1281 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_90
) },
1282 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_100
) },
1283 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_101
) },
1284 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_103
) },
1285 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_104
) },
1286 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_105
) },
1287 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_106
) },
1288 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_107
) },
1289 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_108
) },
1290 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_200
) },
1291 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_201
) },
1292 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_202
) },
1293 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_203
) },
1294 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_204
) },
1295 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_205
) },
1296 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_206
) },
1297 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_207
) },
1298 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_300
) },
1299 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_301
) },
1300 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_302
) },
1301 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_303
) },
1302 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_304
) },
1303 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_305
) },
1304 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_306
) },
1305 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_307
) },
1306 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_308
) },
1307 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_309
) },
1308 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_400
) },
1309 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_401
) },
1310 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_402
) },
1311 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_403
) },
1312 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_404
) },
1313 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_405
) },
1314 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_500
) },
1315 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_501
) },
1316 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_502
) },
1317 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_503
) },
1318 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_504
) },
1319 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1000
) },
1320 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1001
) },
1321 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1002
) },
1322 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1003
) },
1323 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1004
) },
1324 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1005
) },
1325 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1006
) },
1326 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1007
) },
1327 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION
, USB_DEVICE_ID_DISC_STAKKA
) },
1328 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR
, USB_DEVICE_ID_KBGEAR_JAMSTUDIO
) },
1329 { HID_USB_DEVICE(USB_VENDOR_ID_KYE
, USB_DEVICE_ID_KYE_GPEN_560
) },
1330 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_CASSY
) },
1331 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_POCKETCASSY
) },
1332 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_MOBILECASSY
) },
1333 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_JWM
) },
1334 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_DMMP
) },
1335 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_UMIP
) },
1336 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_XRAY1
) },
1337 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_XRAY2
) },
1338 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_VIDEOCOM
) },
1339 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_COM3LAB
) },
1340 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_TELEPORT
) },
1341 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_NETWORKANALYSER
) },
1342 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_POWERCONTROL
) },
1343 { HID_USB_DEVICE(USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_MACHINETEST
) },
1344 { HID_USB_DEVICE(USB_VENDOR_ID_MCC
, USB_DEVICE_ID_MCC_PMD1024LS
) },
1345 { HID_USB_DEVICE(USB_VENDOR_ID_MCC
, USB_DEVICE_ID_MCC_PMD1208LS
) },
1346 { HID_USB_DEVICE(USB_VENDOR_ID_MGE
, USB_DEVICE_ID_MGE_UPS
) },
1347 { HID_USB_DEVICE(USB_VENDOR_ID_MGE
, USB_DEVICE_ID_MGE_UPS1
) },
1348 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP
, USB_DEVICE_ID_PICKIT1
) },
1349 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP
, USB_DEVICE_ID_PICKIT2
) },
1350 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR
, USB_DEVICE_ID_N_S_HARMONY
) },
1351 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
) },
1352 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 20) },
1353 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 30) },
1354 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 100) },
1355 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 108) },
1356 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 118) },
1357 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 200) },
1358 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 300) },
1359 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 400) },
1360 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 500) },
1361 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT
, 0x0001) },
1362 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT
, 0x0002) },
1363 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT
, 0x0003) },
1364 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT
, 0x0004) },
1365 { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH
, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD
) },
1366 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER
, USB_DEVICE_ID_VERNIER_LABPRO
) },
1367 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER
, USB_DEVICE_ID_VERNIER_GOTEMP
) },
1368 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER
, USB_DEVICE_ID_VERNIER_SKIP
) },
1369 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER
, USB_DEVICE_ID_VERNIER_CYCLOPS
) },
1370 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER
, USB_DEVICE_ID_VERNIER_LCSPEC
) },
1371 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM
, HID_ANY_ID
) },
1372 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP
, USB_DEVICE_ID_4_PHIDGETSERVO_20
) },
1373 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP
, USB_DEVICE_ID_1_PHIDGETSERVO_20
) },
1374 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP
, USB_DEVICE_ID_8_8_4_IF_KIT
) },
1375 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK
, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K
) },
1379 static bool hid_ignore(struct hid_device
*hdev
)
1381 switch (hdev
->vendor
) {
1382 case USB_VENDOR_ID_CODEMERCS
:
1383 /* ignore all Code Mercenaries IOWarrior devices */
1384 if (hdev
->product
>= USB_DEVICE_ID_CODEMERCS_IOW_FIRST
&&
1385 hdev
->product
<= USB_DEVICE_ID_CODEMERCS_IOW_LAST
)
1388 case USB_VENDOR_ID_LOGITECH
:
1389 if (hdev
->product
>= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST
&&
1390 hdev
->product
<= USB_DEVICE_ID_LOGITECH_HARMONY_LAST
)
1395 return !!hid_match_id(hdev
, hid_ignore_list
);
1398 int hid_add_device(struct hid_device
*hdev
)
1400 static atomic_t id
= ATOMIC_INIT(0);
1403 if (WARN_ON(hdev
->status
& HID_STAT_ADDED
))
1406 /* we need to kill them here, otherwise they will stay allocated to
1407 * wait for coming driver */
1408 if (hid_ignore(hdev
))
1411 /* XXX hack, any other cleaner solution < 20 bus_id bytes? */
1412 sprintf(hdev
->dev
.bus_id
, "%04X:%04X:%04X.%04X", hdev
->bus
,
1413 hdev
->vendor
, hdev
->product
, atomic_inc_return(&id
));
1415 ret
= device_add(&hdev
->dev
);
1417 hdev
->status
|= HID_STAT_ADDED
;
1421 EXPORT_SYMBOL_GPL(hid_add_device
);
1424 * hid_allocate_device - allocate new hid device descriptor
1426 * Allocate and initialize hid device, so that hid_destroy_device might be
1429 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
1432 struct hid_device
*hid_allocate_device(void)
1434 struct hid_device
*hdev
;
1438 hdev
= kzalloc(sizeof(*hdev
), GFP_KERNEL
);
1440 return ERR_PTR(ret
);
1442 device_initialize(&hdev
->dev
);
1443 hdev
->dev
.release
= hid_device_release
;
1444 hdev
->dev
.bus
= &hid_bus_type
;
1446 hdev
->collection
= kcalloc(HID_DEFAULT_NUM_COLLECTIONS
,
1447 sizeof(struct hid_collection
), GFP_KERNEL
);
1448 if (hdev
->collection
== NULL
)
1450 hdev
->collection_size
= HID_DEFAULT_NUM_COLLECTIONS
;
1452 for (i
= 0; i
< HID_REPORT_TYPES
; i
++)
1453 INIT_LIST_HEAD(&hdev
->report_enum
[i
].report_list
);
1457 put_device(&hdev
->dev
);
1458 return ERR_PTR(ret
);
1460 EXPORT_SYMBOL_GPL(hid_allocate_device
);
1462 static void hid_remove_device(struct hid_device
*hdev
)
1464 if (hdev
->status
& HID_STAT_ADDED
) {
1465 device_del(&hdev
->dev
);
1466 hdev
->status
&= ~HID_STAT_ADDED
;
1471 * hid_destroy_device - free previously allocated device
1475 * If you allocate hid_device through hid_allocate_device, you should ever
1476 * free by this function.
1478 void hid_destroy_device(struct hid_device
*hdev
)
1480 hid_remove_device(hdev
);
1481 put_device(&hdev
->dev
);
1483 EXPORT_SYMBOL_GPL(hid_destroy_device
);
1485 int __hid_register_driver(struct hid_driver
*hdrv
, struct module
*owner
,
1486 const char *mod_name
)
1488 hdrv
->driver
.name
= hdrv
->name
;
1489 hdrv
->driver
.bus
= &hid_bus_type
;
1490 hdrv
->driver
.owner
= owner
;
1491 hdrv
->driver
.mod_name
= mod_name
;
1493 return driver_register(&hdrv
->driver
);
1495 EXPORT_SYMBOL_GPL(__hid_register_driver
);
1497 void hid_unregister_driver(struct hid_driver
*hdrv
)
1499 driver_unregister(&hdrv
->driver
);
1501 EXPORT_SYMBOL_GPL(hid_unregister_driver
);
1503 static int __init
hid_init(void)
1507 ret
= bus_register(&hid_bus_type
);
1509 printk(KERN_ERR
"HID: can't register hid bus\n");
1513 ret
= hidraw_init();
1519 bus_unregister(&hid_bus_type
);
1524 static void __exit
hid_exit(void)
1527 bus_unregister(&hid_bus_type
);
1530 module_init(hid_init
);
1531 module_exit(hid_exit
);
1533 MODULE_LICENSE(DRIVER_LICENSE
);