2 * USB 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
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the Free
12 * Software Foundation; either version 2 of the License, or (at your option)
16 #include <linux/module.h>
17 #include <linux/slab.h>
18 #include <linux/init.h>
19 #include <linux/kernel.h>
20 #include <linux/sched.h>
21 #include <linux/list.h>
23 #include <linux/smp_lock.h>
24 #include <linux/spinlock.h>
25 #include <asm/unaligned.h>
26 #include <asm/byteorder.h>
27 #include <linux/input.h>
28 #include <linux/wait.h>
33 #include <linux/usb.h>
36 #include <linux/hiddev.h>
42 #define DRIVER_VERSION "v2.6"
43 #define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik"
44 #define DRIVER_DESC "USB HID core driver"
45 #define DRIVER_LICENSE "GPL"
47 static char *hid_types
[] = {"Device", "Pointer", "Mouse", "Device", "Joystick",
48 "Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"};
53 static unsigned int hid_mousepoll_interval
;
54 module_param_named(mousepoll
, hid_mousepoll_interval
, uint
, 0644);
55 MODULE_PARM_DESC(mousepoll
, "Polling interval of mice");
58 * Register a new report for a device.
61 static struct hid_report
*hid_register_report(struct hid_device
*device
, unsigned type
, unsigned id
)
63 struct hid_report_enum
*report_enum
= device
->report_enum
+ type
;
64 struct hid_report
*report
;
66 if (report_enum
->report_id_hash
[id
])
67 return report_enum
->report_id_hash
[id
];
69 if (!(report
= kzalloc(sizeof(struct hid_report
), GFP_KERNEL
)))
73 report_enum
->numbered
= 1;
78 report
->device
= device
;
79 report_enum
->report_id_hash
[id
] = report
;
81 list_add_tail(&report
->list
, &report_enum
->report_list
);
87 * Register a new field for this report.
90 static struct hid_field
*hid_register_field(struct hid_report
*report
, unsigned usages
, unsigned values
)
92 struct hid_field
*field
;
94 if (report
->maxfield
== HID_MAX_FIELDS
) {
95 dbg("too many fields in report");
99 if (!(field
= kzalloc(sizeof(struct hid_field
) + usages
* sizeof(struct hid_usage
)
100 + values
* sizeof(unsigned), GFP_KERNEL
))) return NULL
;
102 field
->index
= report
->maxfield
++;
103 report
->field
[field
->index
] = field
;
104 field
->usage
= (struct hid_usage
*)(field
+ 1);
105 field
->value
= (unsigned *)(field
->usage
+ usages
);
106 field
->report
= report
;
112 * Open a collection. The type/usage is pushed on the stack.
115 static int open_collection(struct hid_parser
*parser
, unsigned type
)
117 struct hid_collection
*collection
;
120 usage
= parser
->local
.usage
[0];
122 if (parser
->collection_stack_ptr
== HID_COLLECTION_STACK_SIZE
) {
123 dbg("collection stack overflow");
127 if (parser
->device
->maxcollection
== parser
->device
->collection_size
) {
128 collection
= kmalloc(sizeof(struct hid_collection
) *
129 parser
->device
->collection_size
* 2, GFP_KERNEL
);
130 if (collection
== NULL
) {
131 dbg("failed to reallocate collection array");
134 memcpy(collection
, parser
->device
->collection
,
135 sizeof(struct hid_collection
) *
136 parser
->device
->collection_size
);
137 memset(collection
+ parser
->device
->collection_size
, 0,
138 sizeof(struct hid_collection
) *
139 parser
->device
->collection_size
);
140 kfree(parser
->device
->collection
);
141 parser
->device
->collection
= collection
;
142 parser
->device
->collection_size
*= 2;
145 parser
->collection_stack
[parser
->collection_stack_ptr
++] =
146 parser
->device
->maxcollection
;
148 collection
= parser
->device
->collection
+
149 parser
->device
->maxcollection
++;
150 collection
->type
= type
;
151 collection
->usage
= usage
;
152 collection
->level
= parser
->collection_stack_ptr
- 1;
154 if (type
== HID_COLLECTION_APPLICATION
)
155 parser
->device
->maxapplication
++;
161 * Close a collection.
164 static int close_collection(struct hid_parser
*parser
)
166 if (!parser
->collection_stack_ptr
) {
167 dbg("collection stack underflow");
170 parser
->collection_stack_ptr
--;
175 * Climb up the stack, search for the specified collection type
176 * and return the usage.
179 static unsigned hid_lookup_collection(struct hid_parser
*parser
, unsigned type
)
182 for (n
= parser
->collection_stack_ptr
- 1; n
>= 0; n
--)
183 if (parser
->device
->collection
[parser
->collection_stack
[n
]].type
== type
)
184 return parser
->device
->collection
[parser
->collection_stack
[n
]].usage
;
185 return 0; /* we know nothing about this usage type */
189 * Add a usage to the temporary parser table.
192 static int hid_add_usage(struct hid_parser
*parser
, unsigned usage
)
194 if (parser
->local
.usage_index
>= HID_MAX_USAGES
) {
195 dbg("usage index exceeded");
198 parser
->local
.usage
[parser
->local
.usage_index
] = usage
;
199 parser
->local
.collection_index
[parser
->local
.usage_index
] =
200 parser
->collection_stack_ptr
?
201 parser
->collection_stack
[parser
->collection_stack_ptr
- 1] : 0;
202 parser
->local
.usage_index
++;
207 * Register a new field for this report.
210 static int hid_add_field(struct hid_parser
*parser
, unsigned report_type
, unsigned flags
)
212 struct hid_report
*report
;
213 struct hid_field
*field
;
218 if (!(report
= hid_register_report(parser
->device
, report_type
, parser
->global
.report_id
))) {
219 dbg("hid_register_report failed");
223 if (parser
->global
.logical_maximum
< parser
->global
.logical_minimum
) {
224 dbg("logical range invalid %d %d", parser
->global
.logical_minimum
, parser
->global
.logical_maximum
);
228 offset
= report
->size
;
229 report
->size
+= parser
->global
.report_size
* parser
->global
.report_count
;
231 if (!parser
->local
.usage_index
) /* Ignore padding fields */
234 usages
= max_t(int, parser
->local
.usage_index
, parser
->global
.report_count
);
236 if ((field
= hid_register_field(report
, usages
, parser
->global
.report_count
)) == NULL
)
239 field
->physical
= hid_lookup_collection(parser
, HID_COLLECTION_PHYSICAL
);
240 field
->logical
= hid_lookup_collection(parser
, HID_COLLECTION_LOGICAL
);
241 field
->application
= hid_lookup_collection(parser
, HID_COLLECTION_APPLICATION
);
243 for (i
= 0; i
< usages
; i
++) {
245 /* Duplicate the last usage we parsed if we have excess values */
246 if (i
>= parser
->local
.usage_index
)
247 j
= parser
->local
.usage_index
- 1;
248 field
->usage
[i
].hid
= parser
->local
.usage
[j
];
249 field
->usage
[i
].collection_index
=
250 parser
->local
.collection_index
[j
];
253 field
->maxusage
= usages
;
254 field
->flags
= flags
;
255 field
->report_offset
= offset
;
256 field
->report_type
= report_type
;
257 field
->report_size
= parser
->global
.report_size
;
258 field
->report_count
= parser
->global
.report_count
;
259 field
->logical_minimum
= parser
->global
.logical_minimum
;
260 field
->logical_maximum
= parser
->global
.logical_maximum
;
261 field
->physical_minimum
= parser
->global
.physical_minimum
;
262 field
->physical_maximum
= parser
->global
.physical_maximum
;
263 field
->unit_exponent
= parser
->global
.unit_exponent
;
264 field
->unit
= parser
->global
.unit
;
270 * Read data value from item.
273 static __inline__ __u32
item_udata(struct hid_item
*item
)
275 switch (item
->size
) {
276 case 1: return item
->data
.u8
;
277 case 2: return item
->data
.u16
;
278 case 4: return item
->data
.u32
;
283 static __inline__ __s32
item_sdata(struct hid_item
*item
)
285 switch (item
->size
) {
286 case 1: return item
->data
.s8
;
287 case 2: return item
->data
.s16
;
288 case 4: return item
->data
.s32
;
294 * Process a global item.
297 static int hid_parser_global(struct hid_parser
*parser
, struct hid_item
*item
)
301 case HID_GLOBAL_ITEM_TAG_PUSH
:
303 if (parser
->global_stack_ptr
== HID_GLOBAL_STACK_SIZE
) {
304 dbg("global enviroment stack overflow");
308 memcpy(parser
->global_stack
+ parser
->global_stack_ptr
++,
309 &parser
->global
, sizeof(struct hid_global
));
312 case HID_GLOBAL_ITEM_TAG_POP
:
314 if (!parser
->global_stack_ptr
) {
315 dbg("global enviroment stack underflow");
319 memcpy(&parser
->global
, parser
->global_stack
+ --parser
->global_stack_ptr
,
320 sizeof(struct hid_global
));
323 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE
:
324 parser
->global
.usage_page
= item_udata(item
);
327 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM
:
328 parser
->global
.logical_minimum
= item_sdata(item
);
331 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM
:
332 if (parser
->global
.logical_minimum
< 0)
333 parser
->global
.logical_maximum
= item_sdata(item
);
335 parser
->global
.logical_maximum
= item_udata(item
);
338 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM
:
339 parser
->global
.physical_minimum
= item_sdata(item
);
342 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM
:
343 if (parser
->global
.physical_minimum
< 0)
344 parser
->global
.physical_maximum
= item_sdata(item
);
346 parser
->global
.physical_maximum
= item_udata(item
);
349 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT
:
350 parser
->global
.unit_exponent
= item_sdata(item
);
353 case HID_GLOBAL_ITEM_TAG_UNIT
:
354 parser
->global
.unit
= item_udata(item
);
357 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE
:
358 if ((parser
->global
.report_size
= item_udata(item
)) > 32) {
359 dbg("invalid report_size %d", parser
->global
.report_size
);
364 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT
:
365 if ((parser
->global
.report_count
= item_udata(item
)) > HID_MAX_USAGES
) {
366 dbg("invalid report_count %d", parser
->global
.report_count
);
371 case HID_GLOBAL_ITEM_TAG_REPORT_ID
:
372 if ((parser
->global
.report_id
= item_udata(item
)) == 0) {
373 dbg("report_id 0 is invalid");
379 dbg("unknown global tag 0x%x", item
->tag
);
385 * Process a local item.
388 static int hid_parser_local(struct hid_parser
*parser
, struct hid_item
*item
)
393 if (item
->size
== 0) {
394 dbg("item data expected for local item");
398 data
= item_udata(item
);
402 case HID_LOCAL_ITEM_TAG_DELIMITER
:
406 * We treat items before the first delimiter
407 * as global to all usage sets (branch 0).
408 * In the moment we process only these global
409 * items and the first delimiter set.
411 if (parser
->local
.delimiter_depth
!= 0) {
412 dbg("nested delimiters");
415 parser
->local
.delimiter_depth
++;
416 parser
->local
.delimiter_branch
++;
418 if (parser
->local
.delimiter_depth
< 1) {
419 dbg("bogus close delimiter");
422 parser
->local
.delimiter_depth
--;
426 case HID_LOCAL_ITEM_TAG_USAGE
:
428 if (parser
->local
.delimiter_branch
> 1) {
429 dbg("alternative usage ignored");
434 data
= (parser
->global
.usage_page
<< 16) + data
;
436 return hid_add_usage(parser
, data
);
438 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM
:
440 if (parser
->local
.delimiter_branch
> 1) {
441 dbg("alternative usage ignored");
446 data
= (parser
->global
.usage_page
<< 16) + data
;
448 parser
->local
.usage_minimum
= data
;
451 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM
:
453 if (parser
->local
.delimiter_branch
> 1) {
454 dbg("alternative usage ignored");
459 data
= (parser
->global
.usage_page
<< 16) + data
;
461 for (n
= parser
->local
.usage_minimum
; n
<= data
; n
++)
462 if (hid_add_usage(parser
, n
)) {
463 dbg("hid_add_usage failed\n");
470 dbg("unknown local item tag 0x%x", item
->tag
);
477 * Process a main item.
480 static int hid_parser_main(struct hid_parser
*parser
, struct hid_item
*item
)
485 data
= item_udata(item
);
488 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION
:
489 ret
= open_collection(parser
, data
& 0xff);
491 case HID_MAIN_ITEM_TAG_END_COLLECTION
:
492 ret
= close_collection(parser
);
494 case HID_MAIN_ITEM_TAG_INPUT
:
495 ret
= hid_add_field(parser
, HID_INPUT_REPORT
, data
);
497 case HID_MAIN_ITEM_TAG_OUTPUT
:
498 ret
= hid_add_field(parser
, HID_OUTPUT_REPORT
, data
);
500 case HID_MAIN_ITEM_TAG_FEATURE
:
501 ret
= hid_add_field(parser
, HID_FEATURE_REPORT
, data
);
504 dbg("unknown main item tag 0x%x", item
->tag
);
508 memset(&parser
->local
, 0, sizeof(parser
->local
)); /* Reset the local parser environment */
514 * Process a reserved item.
517 static int hid_parser_reserved(struct hid_parser
*parser
, struct hid_item
*item
)
519 dbg("reserved item type, tag 0x%x", item
->tag
);
524 * Free a report and all registered fields. The field->usage and
525 * field->value table's are allocated behind the field, so we need
526 * only to free(field) itself.
529 static void hid_free_report(struct hid_report
*report
)
533 for (n
= 0; n
< report
->maxfield
; n
++)
534 kfree(report
->field
[n
]);
539 * Free a device structure, all reports, and all fields.
542 static void hid_free_device(struct hid_device
*device
)
546 for (i
= 0; i
< HID_REPORT_TYPES
; i
++) {
547 struct hid_report_enum
*report_enum
= device
->report_enum
+ i
;
549 for (j
= 0; j
< 256; j
++) {
550 struct hid_report
*report
= report_enum
->report_id_hash
[j
];
552 hid_free_report(report
);
556 kfree(device
->rdesc
);
561 * Fetch a report description item from the data stream. We support long
562 * items, though they are not used yet.
565 static u8
*fetch_item(__u8
*start
, __u8
*end
, struct hid_item
*item
)
569 if ((end
- start
) <= 0)
574 item
->type
= (b
>> 2) & 3;
575 item
->tag
= (b
>> 4) & 15;
577 if (item
->tag
== HID_ITEM_TAG_LONG
) {
579 item
->format
= HID_ITEM_FORMAT_LONG
;
581 if ((end
- start
) < 2)
584 item
->size
= *start
++;
585 item
->tag
= *start
++;
587 if ((end
- start
) < item
->size
)
590 item
->data
.longdata
= start
;
595 item
->format
= HID_ITEM_FORMAT_SHORT
;
598 switch (item
->size
) {
604 if ((end
- start
) < 1)
606 item
->data
.u8
= *start
++;
610 if ((end
- start
) < 2)
612 item
->data
.u16
= le16_to_cpu(get_unaligned((__le16
*)start
));
613 start
= (__u8
*)((__le16
*)start
+ 1);
618 if ((end
- start
) < 4)
620 item
->data
.u32
= le32_to_cpu(get_unaligned((__le32
*)start
));
621 start
= (__u8
*)((__le32
*)start
+ 1);
629 * Parse a report description into a hid_device structure. Reports are
630 * enumerated, fields are attached to these reports.
633 static struct hid_device
*hid_parse_report(__u8
*start
, unsigned size
)
635 struct hid_device
*device
;
636 struct hid_parser
*parser
;
637 struct hid_item item
;
640 static int (*dispatch_type
[])(struct hid_parser
*parser
,
641 struct hid_item
*item
) = {
648 if (!(device
= kzalloc(sizeof(struct hid_device
), GFP_KERNEL
)))
651 if (!(device
->collection
= kzalloc(sizeof(struct hid_collection
) *
652 HID_DEFAULT_NUM_COLLECTIONS
, GFP_KERNEL
))) {
656 device
->collection_size
= HID_DEFAULT_NUM_COLLECTIONS
;
658 for (i
= 0; i
< HID_REPORT_TYPES
; i
++)
659 INIT_LIST_HEAD(&device
->report_enum
[i
].report_list
);
661 if (!(device
->rdesc
= (__u8
*)kmalloc(size
, GFP_KERNEL
))) {
662 kfree(device
->collection
);
666 memcpy(device
->rdesc
, start
, size
);
667 device
->rsize
= size
;
669 if (!(parser
= kzalloc(sizeof(struct hid_parser
), GFP_KERNEL
))) {
670 kfree(device
->rdesc
);
671 kfree(device
->collection
);
675 parser
->device
= device
;
678 while ((start
= fetch_item(start
, end
, &item
)) != NULL
) {
680 if (item
.format
!= HID_ITEM_FORMAT_SHORT
) {
681 dbg("unexpected long global item");
682 kfree(device
->collection
);
683 hid_free_device(device
);
688 if (dispatch_type
[item
.type
](parser
, &item
)) {
689 dbg("item %u %u %u %u parsing failed\n",
690 item
.format
, (unsigned)item
.size
, (unsigned)item
.type
, (unsigned)item
.tag
);
691 kfree(device
->collection
);
692 hid_free_device(device
);
698 if (parser
->collection_stack_ptr
) {
699 dbg("unbalanced collection at end of report description");
700 kfree(device
->collection
);
701 hid_free_device(device
);
705 if (parser
->local
.delimiter_depth
) {
706 dbg("unbalanced delimiter at end of report description");
707 kfree(device
->collection
);
708 hid_free_device(device
);
717 dbg("item fetching failed at offset %d\n", (int)(end
- start
));
718 kfree(device
->collection
);
719 hid_free_device(device
);
725 * Convert a signed n-bit integer to signed 32-bit integer. Common
726 * cases are done through the compiler, the screwed things has to be
730 static __inline__ __s32
snto32(__u32 value
, unsigned n
)
733 case 8: return ((__s8
)value
);
734 case 16: return ((__s16
)value
);
735 case 32: return ((__s32
)value
);
737 return value
& (1 << (n
- 1)) ? value
| (-1 << n
) : value
;
741 * Convert a signed 32-bit integer to a signed n-bit integer.
744 static __inline__ __u32
s32ton(__s32 value
, unsigned n
)
746 __s32 a
= value
>> (n
- 1);
748 return value
< 0 ? 1 << (n
- 1) : (1 << (n
- 1)) - 1;
749 return value
& ((1 << n
) - 1);
753 * Extract/implement a data field from/to a report.
756 static __inline__ __u32
extract(__u8
*report
, unsigned offset
, unsigned n
)
758 report
+= (offset
>> 5) << 2; offset
&= 31;
759 return (le64_to_cpu(get_unaligned((__le64
*)report
)) >> offset
) & ((1ULL << n
) - 1);
762 static __inline__
void implement(__u8
*report
, unsigned offset
, unsigned n
, __u32 value
)
764 report
+= (offset
>> 5) << 2; offset
&= 31;
765 put_unaligned((get_unaligned((__le64
*)report
)
766 & cpu_to_le64(~((((__u64
) 1 << n
) - 1) << offset
)))
767 | cpu_to_le64((__u64
)value
<< offset
), (__le64
*)report
);
771 * Search an array for a value.
774 static __inline__
int search(__s32
*array
, __s32 value
, unsigned n
)
777 if (*array
++ == value
)
783 static void hid_process_event(struct hid_device
*hid
, struct hid_field
*field
, struct hid_usage
*usage
, __s32 value
, int interrupt
, struct pt_regs
*regs
)
785 hid_dump_input(usage
, value
);
786 if (hid
->claimed
& HID_CLAIMED_INPUT
)
787 hidinput_hid_event(hid
, field
, usage
, value
, regs
);
788 if (hid
->claimed
& HID_CLAIMED_HIDDEV
&& interrupt
)
789 hiddev_hid_event(hid
, field
, usage
, value
, regs
);
793 * Analyse a received field, and fetch the data from it. The field
794 * content is stored for next report processing (we do differential
795 * reporting to the layer).
798 static void hid_input_field(struct hid_device
*hid
, struct hid_field
*field
, __u8
*data
, int interrupt
, struct pt_regs
*regs
)
801 unsigned count
= field
->report_count
;
802 unsigned offset
= field
->report_offset
;
803 unsigned size
= field
->report_size
;
804 __s32 min
= field
->logical_minimum
;
805 __s32 max
= field
->logical_maximum
;
808 if (!(value
= kmalloc(sizeof(__s32
) * count
, GFP_ATOMIC
)))
811 for (n
= 0; n
< count
; n
++) {
813 value
[n
] = min
< 0 ? snto32(extract(data
, offset
+ n
* size
, size
), size
) :
814 extract(data
, offset
+ n
* size
, size
);
816 if (!(field
->flags
& HID_MAIN_ITEM_VARIABLE
) /* Ignore report if ErrorRollOver */
817 && value
[n
] >= min
&& value
[n
] <= max
818 && field
->usage
[value
[n
] - min
].hid
== HID_UP_KEYBOARD
+ 1)
822 for (n
= 0; n
< count
; n
++) {
824 if (HID_MAIN_ITEM_VARIABLE
& field
->flags
) {
825 hid_process_event(hid
, field
, &field
->usage
[n
], value
[n
], interrupt
, regs
);
829 if (field
->value
[n
] >= min
&& field
->value
[n
] <= max
830 && field
->usage
[field
->value
[n
] - min
].hid
831 && search(value
, field
->value
[n
], count
))
832 hid_process_event(hid
, field
, &field
->usage
[field
->value
[n
] - min
], 0, interrupt
, regs
);
834 if (value
[n
] >= min
&& value
[n
] <= max
835 && field
->usage
[value
[n
] - min
].hid
836 && search(field
->value
, value
[n
], count
))
837 hid_process_event(hid
, field
, &field
->usage
[value
[n
] - min
], 1, interrupt
, regs
);
840 memcpy(field
->value
, value
, count
* sizeof(__s32
));
845 static int hid_input_report(int type
, struct urb
*urb
, int interrupt
, struct pt_regs
*regs
)
847 struct hid_device
*hid
= urb
->context
;
848 struct hid_report_enum
*report_enum
= hid
->report_enum
+ type
;
849 u8
*data
= urb
->transfer_buffer
;
850 int len
= urb
->actual_length
;
851 struct hid_report
*report
;
860 printk(KERN_DEBUG __FILE__
": report (size %u) (%snumbered)\n", len
, report_enum
->numbered
? "" : "un");
863 n
= 0; /* Normally report number is 0 */
864 if (report_enum
->numbered
) { /* Device uses numbered reports, data[0] is report number */
872 printk(KERN_DEBUG __FILE__
": report %d (size %u) = ", n
, len
);
873 for (i
= 0; i
< len
; i
++)
874 printk(" %02x", data
[i
]);
879 if (!(report
= report_enum
->report_id_hash
[n
])) {
880 dbg("undefined report_id %d received", n
);
884 size
= ((report
->size
- 1) >> 3) + 1;
887 dbg("report %d is too short, (%d < %d)", report
->id
, len
, size
);
888 memset(data
+ len
, 0, size
- len
);
891 if (hid
->claimed
& HID_CLAIMED_HIDDEV
)
892 hiddev_report_event(hid
, report
);
894 for (n
= 0; n
< report
->maxfield
; n
++)
895 hid_input_field(hid
, report
->field
[n
], data
, interrupt
, regs
);
897 if (hid
->claimed
& HID_CLAIMED_INPUT
)
898 hidinput_report_event(hid
, report
);
904 * Input submission and I/O error handler.
907 static void hid_io_error(struct hid_device
*hid
);
909 /* Start up the input URB */
910 static int hid_start_in(struct hid_device
*hid
)
915 spin_lock_irqsave(&hid
->inlock
, flags
);
916 if (hid
->open
> 0 && !test_bit(HID_SUSPENDED
, &hid
->iofl
) &&
917 !test_and_set_bit(HID_IN_RUNNING
, &hid
->iofl
)) {
918 rc
= usb_submit_urb(hid
->urbin
, GFP_ATOMIC
);
920 clear_bit(HID_IN_RUNNING
, &hid
->iofl
);
922 spin_unlock_irqrestore(&hid
->inlock
, flags
);
926 /* I/O retry timer routine */
927 static void hid_retry_timeout(unsigned long _hid
)
929 struct hid_device
*hid
= (struct hid_device
*) _hid
;
931 dev_dbg(&hid
->intf
->dev
, "retrying intr urb\n");
932 if (hid_start_in(hid
))
936 /* Workqueue routine to reset the device */
937 static void hid_reset(void *_hid
)
939 struct hid_device
*hid
= (struct hid_device
*) _hid
;
942 dev_dbg(&hid
->intf
->dev
, "resetting device\n");
943 rc
= rc_lock
= usb_lock_device_for_reset(hid
->dev
, hid
->intf
);
945 rc
= usb_reset_composite_device(hid
->dev
, hid
->intf
);
947 usb_unlock_device(hid
->dev
);
949 clear_bit(HID_RESET_PENDING
, &hid
->iofl
);
953 if (!test_bit(HID_IN_RUNNING
, &hid
->iofl
))
957 err("can't reset device, %s-%s/input%d, status %d",
958 hid
->dev
->bus
->bus_name
,
969 /* Main I/O error handler */
970 static void hid_io_error(struct hid_device
*hid
)
974 spin_lock_irqsave(&hid
->inlock
, flags
);
976 /* Stop when disconnected */
977 if (usb_get_intfdata(hid
->intf
) == NULL
)
980 /* When an error occurs, retry at increasing intervals */
981 if (hid
->retry_delay
== 0) {
982 hid
->retry_delay
= 13; /* Then 26, 52, 104, 104, ... */
983 hid
->stop_retry
= jiffies
+ msecs_to_jiffies(1000);
984 } else if (hid
->retry_delay
< 100)
985 hid
->retry_delay
*= 2;
987 if (time_after(jiffies
, hid
->stop_retry
)) {
989 /* Retries failed, so do a port reset */
990 if (!test_and_set_bit(HID_RESET_PENDING
, &hid
->iofl
)) {
991 if (schedule_work(&hid
->reset_work
))
993 clear_bit(HID_RESET_PENDING
, &hid
->iofl
);
997 mod_timer(&hid
->io_retry
,
998 jiffies
+ msecs_to_jiffies(hid
->retry_delay
));
1000 spin_unlock_irqrestore(&hid
->inlock
, flags
);
1004 * Input interrupt completion handler.
1007 static void hid_irq_in(struct urb
*urb
, struct pt_regs
*regs
)
1009 struct hid_device
*hid
= urb
->context
;
1012 switch (urb
->status
) {
1013 case 0: /* success */
1014 hid
->retry_delay
= 0;
1015 hid_input_report(HID_INPUT_REPORT
, urb
, 1, regs
);
1017 case -ECONNRESET
: /* unlink */
1019 case -ESHUTDOWN
: /* unplug */
1020 clear_bit(HID_IN_RUNNING
, &hid
->iofl
);
1022 case -EILSEQ
: /* protocol error or unplug */
1023 case -EPROTO
: /* protocol error or unplug */
1024 case -ETIMEDOUT
: /* NAK */
1025 clear_bit(HID_IN_RUNNING
, &hid
->iofl
);
1028 default: /* error */
1029 warn("input irq status %d received", urb
->status
);
1032 status
= usb_submit_urb(urb
, SLAB_ATOMIC
);
1034 clear_bit(HID_IN_RUNNING
, &hid
->iofl
);
1035 if (status
!= -EPERM
) {
1036 err("can't resubmit intr, %s-%s/input%d, status %d",
1037 hid
->dev
->bus
->bus_name
,
1039 hid
->ifnum
, status
);
1046 * Output the field into the report.
1049 static void hid_output_field(struct hid_field
*field
, __u8
*data
)
1051 unsigned count
= field
->report_count
;
1052 unsigned offset
= field
->report_offset
;
1053 unsigned size
= field
->report_size
;
1056 for (n
= 0; n
< count
; n
++) {
1057 if (field
->logical_minimum
< 0) /* signed values */
1058 implement(data
, offset
+ n
* size
, size
, s32ton(field
->value
[n
], size
));
1059 else /* unsigned values */
1060 implement(data
, offset
+ n
* size
, size
, field
->value
[n
]);
1068 static void hid_output_report(struct hid_report
*report
, __u8
*data
)
1073 *data
++ = report
->id
;
1075 for (n
= 0; n
< report
->maxfield
; n
++)
1076 hid_output_field(report
->field
[n
], data
);
1080 * Set a field value. The report this field belongs to has to be
1081 * created and transferred to the device, to set this value in the
1085 int hid_set_field(struct hid_field
*field
, unsigned offset
, __s32 value
)
1087 unsigned size
= field
->report_size
;
1089 hid_dump_input(field
->usage
+ offset
, value
);
1091 if (offset
>= field
->report_count
) {
1092 dbg("offset (%d) exceeds report_count (%d)", offset
, field
->report_count
);
1093 hid_dump_field(field
, 8);
1096 if (field
->logical_minimum
< 0) {
1097 if (value
!= snto32(s32ton(value
, size
), size
)) {
1098 dbg("value %d is out of range", value
);
1102 field
->value
[offset
] = value
;
1107 * Find a report field with a specified HID usage.
1110 struct hid_field
*hid_find_field_by_usage(struct hid_device
*hid
, __u32 wanted_usage
, int type
)
1112 struct hid_report
*report
;
1115 list_for_each_entry(report
, &hid
->report_enum
[type
].report_list
, list
)
1116 for (i
= 0; i
< report
->maxfield
; i
++)
1117 if (report
->field
[i
]->logical
== wanted_usage
)
1118 return report
->field
[i
];
1123 static int hid_submit_out(struct hid_device
*hid
)
1125 struct hid_report
*report
;
1127 report
= hid
->out
[hid
->outtail
];
1129 hid_output_report(report
, hid
->outbuf
);
1130 hid
->urbout
->transfer_buffer_length
= ((report
->size
- 1) >> 3) + 1 + (report
->id
> 0);
1131 hid
->urbout
->dev
= hid
->dev
;
1133 dbg("submitting out urb");
1135 if (usb_submit_urb(hid
->urbout
, GFP_ATOMIC
)) {
1136 err("usb_submit_urb(out) failed");
1143 static int hid_submit_ctrl(struct hid_device
*hid
)
1145 struct hid_report
*report
;
1149 report
= hid
->ctrl
[hid
->ctrltail
].report
;
1150 dir
= hid
->ctrl
[hid
->ctrltail
].dir
;
1152 len
= ((report
->size
- 1) >> 3) + 1 + (report
->id
> 0);
1153 if (dir
== USB_DIR_OUT
) {
1154 hid_output_report(report
, hid
->ctrlbuf
);
1155 hid
->urbctrl
->pipe
= usb_sndctrlpipe(hid
->dev
, 0);
1156 hid
->urbctrl
->transfer_buffer_length
= len
;
1158 int maxpacket
, padlen
;
1160 hid
->urbctrl
->pipe
= usb_rcvctrlpipe(hid
->dev
, 0);
1161 maxpacket
= usb_maxpacket(hid
->dev
, hid
->urbctrl
->pipe
, 0);
1162 if (maxpacket
> 0) {
1163 padlen
= (len
+ maxpacket
- 1) / maxpacket
;
1164 padlen
*= maxpacket
;
1165 if (padlen
> hid
->bufsize
)
1166 padlen
= hid
->bufsize
;
1169 hid
->urbctrl
->transfer_buffer_length
= padlen
;
1171 hid
->urbctrl
->dev
= hid
->dev
;
1173 hid
->cr
->bRequestType
= USB_TYPE_CLASS
| USB_RECIP_INTERFACE
| dir
;
1174 hid
->cr
->bRequest
= (dir
== USB_DIR_OUT
) ? HID_REQ_SET_REPORT
: HID_REQ_GET_REPORT
;
1175 hid
->cr
->wValue
= cpu_to_le16(((report
->type
+ 1) << 8) | report
->id
);
1176 hid
->cr
->wIndex
= cpu_to_le16(hid
->ifnum
);
1177 hid
->cr
->wLength
= cpu_to_le16(len
);
1179 dbg("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u",
1180 hid
->cr
->bRequest
== HID_REQ_SET_REPORT
? "Set_Report" : "Get_Report",
1181 hid
->cr
->wValue
, hid
->cr
->wIndex
, hid
->cr
->wLength
);
1183 if (usb_submit_urb(hid
->urbctrl
, GFP_ATOMIC
)) {
1184 err("usb_submit_urb(ctrl) failed");
1192 * Output interrupt completion handler.
1195 static void hid_irq_out(struct urb
*urb
, struct pt_regs
*regs
)
1197 struct hid_device
*hid
= urb
->context
;
1198 unsigned long flags
;
1201 switch (urb
->status
) {
1202 case 0: /* success */
1204 case -ESHUTDOWN
: /* unplug */
1206 case -EILSEQ
: /* protocol error or unplug */
1207 case -EPROTO
: /* protocol error or unplug */
1208 case -ECONNRESET
: /* unlink */
1211 default: /* error */
1212 warn("output irq status %d received", urb
->status
);
1215 spin_lock_irqsave(&hid
->outlock
, flags
);
1218 hid
->outtail
= hid
->outhead
;
1220 hid
->outtail
= (hid
->outtail
+ 1) & (HID_OUTPUT_FIFO_SIZE
- 1);
1222 if (hid
->outhead
!= hid
->outtail
) {
1223 if (hid_submit_out(hid
)) {
1224 clear_bit(HID_OUT_RUNNING
, &hid
->iofl
);
1225 wake_up(&hid
->wait
);
1227 spin_unlock_irqrestore(&hid
->outlock
, flags
);
1231 clear_bit(HID_OUT_RUNNING
, &hid
->iofl
);
1232 spin_unlock_irqrestore(&hid
->outlock
, flags
);
1233 wake_up(&hid
->wait
);
1237 * Control pipe completion handler.
1240 static void hid_ctrl(struct urb
*urb
, struct pt_regs
*regs
)
1242 struct hid_device
*hid
= urb
->context
;
1243 unsigned long flags
;
1246 spin_lock_irqsave(&hid
->ctrllock
, flags
);
1248 switch (urb
->status
) {
1249 case 0: /* success */
1250 if (hid
->ctrl
[hid
->ctrltail
].dir
== USB_DIR_IN
)
1251 hid_input_report(hid
->ctrl
[hid
->ctrltail
].report
->type
, urb
, 0, regs
);
1253 case -ESHUTDOWN
: /* unplug */
1255 case -EILSEQ
: /* protocol error or unplug */
1256 case -EPROTO
: /* protocol error or unplug */
1257 case -ECONNRESET
: /* unlink */
1259 case -EPIPE
: /* report not available */
1261 default: /* error */
1262 warn("ctrl urb status %d received", urb
->status
);
1266 hid
->ctrltail
= hid
->ctrlhead
;
1268 hid
->ctrltail
= (hid
->ctrltail
+ 1) & (HID_CONTROL_FIFO_SIZE
- 1);
1270 if (hid
->ctrlhead
!= hid
->ctrltail
) {
1271 if (hid_submit_ctrl(hid
)) {
1272 clear_bit(HID_CTRL_RUNNING
, &hid
->iofl
);
1273 wake_up(&hid
->wait
);
1275 spin_unlock_irqrestore(&hid
->ctrllock
, flags
);
1279 clear_bit(HID_CTRL_RUNNING
, &hid
->iofl
);
1280 spin_unlock_irqrestore(&hid
->ctrllock
, flags
);
1281 wake_up(&hid
->wait
);
1284 void hid_submit_report(struct hid_device
*hid
, struct hid_report
*report
, unsigned char dir
)
1287 unsigned long flags
;
1289 if ((hid
->quirks
& HID_QUIRK_NOGET
) && dir
== USB_DIR_IN
)
1292 if (hid
->urbout
&& dir
== USB_DIR_OUT
&& report
->type
== HID_OUTPUT_REPORT
) {
1294 spin_lock_irqsave(&hid
->outlock
, flags
);
1296 if ((head
= (hid
->outhead
+ 1) & (HID_OUTPUT_FIFO_SIZE
- 1)) == hid
->outtail
) {
1297 spin_unlock_irqrestore(&hid
->outlock
, flags
);
1298 warn("output queue full");
1302 hid
->out
[hid
->outhead
] = report
;
1303 hid
->outhead
= head
;
1305 if (!test_and_set_bit(HID_OUT_RUNNING
, &hid
->iofl
))
1306 if (hid_submit_out(hid
))
1307 clear_bit(HID_OUT_RUNNING
, &hid
->iofl
);
1309 spin_unlock_irqrestore(&hid
->outlock
, flags
);
1313 spin_lock_irqsave(&hid
->ctrllock
, flags
);
1315 if ((head
= (hid
->ctrlhead
+ 1) & (HID_CONTROL_FIFO_SIZE
- 1)) == hid
->ctrltail
) {
1316 spin_unlock_irqrestore(&hid
->ctrllock
, flags
);
1317 warn("control queue full");
1321 hid
->ctrl
[hid
->ctrlhead
].report
= report
;
1322 hid
->ctrl
[hid
->ctrlhead
].dir
= dir
;
1323 hid
->ctrlhead
= head
;
1325 if (!test_and_set_bit(HID_CTRL_RUNNING
, &hid
->iofl
))
1326 if (hid_submit_ctrl(hid
))
1327 clear_bit(HID_CTRL_RUNNING
, &hid
->iofl
);
1329 spin_unlock_irqrestore(&hid
->ctrllock
, flags
);
1332 int hid_wait_io(struct hid_device
*hid
)
1334 if (!wait_event_timeout(hid
->wait
, (!test_bit(HID_CTRL_RUNNING
, &hid
->iofl
) &&
1335 !test_bit(HID_OUT_RUNNING
, &hid
->iofl
)),
1337 dbg("timeout waiting for ctrl or out queue to clear");
1344 static int hid_set_idle(struct usb_device
*dev
, int ifnum
, int report
, int idle
)
1346 return usb_control_msg(dev
, usb_sndctrlpipe(dev
, 0),
1347 HID_REQ_SET_IDLE
, USB_TYPE_CLASS
| USB_RECIP_INTERFACE
, (idle
<< 8) | report
,
1348 ifnum
, NULL
, 0, USB_CTRL_SET_TIMEOUT
);
1351 static int hid_get_class_descriptor(struct usb_device
*dev
, int ifnum
,
1352 unsigned char type
, void *buf
, int size
)
1354 int result
, retries
= 4;
1356 memset(buf
,0,size
); // Make sure we parse really received data
1359 result
= usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0),
1360 USB_REQ_GET_DESCRIPTOR
, USB_RECIP_INTERFACE
| USB_DIR_IN
,
1361 (type
<< 8), ifnum
, buf
, size
, USB_CTRL_GET_TIMEOUT
);
1363 } while (result
< size
&& retries
);
1367 int hid_open(struct hid_device
*hid
)
1370 if (hid_start_in(hid
))
1375 void hid_close(struct hid_device
*hid
)
1378 usb_kill_urb(hid
->urbin
);
1381 #define USB_VENDOR_ID_PANJIT 0x134c
1384 * Initialize all reports
1387 void hid_init_reports(struct hid_device
*hid
)
1389 struct hid_report
*report
;
1392 list_for_each_entry(report
, &hid
->report_enum
[HID_INPUT_REPORT
].report_list
, list
)
1393 hid_submit_report(hid
, report
, USB_DIR_IN
);
1395 list_for_each_entry(report
, &hid
->report_enum
[HID_FEATURE_REPORT
].report_list
, list
)
1396 hid_submit_report(hid
, report
, USB_DIR_IN
);
1399 ret
= hid_wait_io(hid
);
1402 if (test_bit(HID_CTRL_RUNNING
, &hid
->iofl
))
1403 usb_kill_urb(hid
->urbctrl
);
1404 if (test_bit(HID_OUT_RUNNING
, &hid
->iofl
))
1405 usb_kill_urb(hid
->urbout
);
1406 ret
= hid_wait_io(hid
);
1410 warn("timeout initializing reports");
1413 #define USB_VENDOR_ID_GTCO 0x078c
1414 #define USB_DEVICE_ID_GTCO_90 0x0090
1415 #define USB_DEVICE_ID_GTCO_100 0x0100
1416 #define USB_DEVICE_ID_GTCO_101 0x0101
1417 #define USB_DEVICE_ID_GTCO_103 0x0103
1418 #define USB_DEVICE_ID_GTCO_104 0x0104
1419 #define USB_DEVICE_ID_GTCO_105 0x0105
1420 #define USB_DEVICE_ID_GTCO_106 0x0106
1421 #define USB_DEVICE_ID_GTCO_107 0x0107
1422 #define USB_DEVICE_ID_GTCO_108 0x0108
1423 #define USB_DEVICE_ID_GTCO_200 0x0200
1424 #define USB_DEVICE_ID_GTCO_201 0x0201
1425 #define USB_DEVICE_ID_GTCO_202 0x0202
1426 #define USB_DEVICE_ID_GTCO_203 0x0203
1427 #define USB_DEVICE_ID_GTCO_204 0x0204
1428 #define USB_DEVICE_ID_GTCO_205 0x0205
1429 #define USB_DEVICE_ID_GTCO_206 0x0206
1430 #define USB_DEVICE_ID_GTCO_207 0x0207
1431 #define USB_DEVICE_ID_GTCO_300 0x0300
1432 #define USB_DEVICE_ID_GTCO_301 0x0301
1433 #define USB_DEVICE_ID_GTCO_302 0x0302
1434 #define USB_DEVICE_ID_GTCO_303 0x0303
1435 #define USB_DEVICE_ID_GTCO_304 0x0304
1436 #define USB_DEVICE_ID_GTCO_305 0x0305
1437 #define USB_DEVICE_ID_GTCO_306 0x0306
1438 #define USB_DEVICE_ID_GTCO_307 0x0307
1439 #define USB_DEVICE_ID_GTCO_308 0x0308
1440 #define USB_DEVICE_ID_GTCO_309 0x0309
1441 #define USB_DEVICE_ID_GTCO_400 0x0400
1442 #define USB_DEVICE_ID_GTCO_401 0x0401
1443 #define USB_DEVICE_ID_GTCO_402 0x0402
1444 #define USB_DEVICE_ID_GTCO_403 0x0403
1445 #define USB_DEVICE_ID_GTCO_404 0x0404
1446 #define USB_DEVICE_ID_GTCO_405 0x0405
1447 #define USB_DEVICE_ID_GTCO_500 0x0500
1448 #define USB_DEVICE_ID_GTCO_501 0x0501
1449 #define USB_DEVICE_ID_GTCO_502 0x0502
1450 #define USB_DEVICE_ID_GTCO_503 0x0503
1451 #define USB_DEVICE_ID_GTCO_504 0x0504
1452 #define USB_DEVICE_ID_GTCO_1000 0x1000
1453 #define USB_DEVICE_ID_GTCO_1001 0x1001
1454 #define USB_DEVICE_ID_GTCO_1002 0x1002
1455 #define USB_DEVICE_ID_GTCO_1003 0x1003
1456 #define USB_DEVICE_ID_GTCO_1004 0x1004
1457 #define USB_DEVICE_ID_GTCO_1005 0x1005
1458 #define USB_DEVICE_ID_GTCO_1006 0x1006
1460 #define USB_VENDOR_ID_WACOM 0x056a
1462 #define USB_VENDOR_ID_ACECAD 0x0460
1463 #define USB_DEVICE_ID_ACECAD_FLAIR 0x0004
1464 #define USB_DEVICE_ID_ACECAD_302 0x0008
1466 #define USB_VENDOR_ID_KBGEAR 0x084e
1467 #define USB_DEVICE_ID_KBGEAR_JAMSTUDIO 0x1001
1469 #define USB_VENDOR_ID_AIPTEK 0x08ca
1470 #define USB_DEVICE_ID_AIPTEK_01 0x0001
1471 #define USB_DEVICE_ID_AIPTEK_10 0x0010
1472 #define USB_DEVICE_ID_AIPTEK_20 0x0020
1473 #define USB_DEVICE_ID_AIPTEK_21 0x0021
1474 #define USB_DEVICE_ID_AIPTEK_22 0x0022
1475 #define USB_DEVICE_ID_AIPTEK_23 0x0023
1476 #define USB_DEVICE_ID_AIPTEK_24 0x0024
1478 #define USB_VENDOR_ID_GRIFFIN 0x077d
1479 #define USB_DEVICE_ID_POWERMATE 0x0410
1480 #define USB_DEVICE_ID_SOUNDKNOB 0x04AA
1482 #define USB_VENDOR_ID_ATEN 0x0557
1483 #define USB_DEVICE_ID_ATEN_UC100KM 0x2004
1484 #define USB_DEVICE_ID_ATEN_CS124U 0x2202
1485 #define USB_DEVICE_ID_ATEN_2PORTKVM 0x2204
1486 #define USB_DEVICE_ID_ATEN_4PORTKVM 0x2205
1487 #define USB_DEVICE_ID_ATEN_4PORTKVMC 0x2208
1489 #define USB_VENDOR_ID_TOPMAX 0x0663
1490 #define USB_DEVICE_ID_TOPMAX_COBRAPAD 0x0103
1492 #define USB_VENDOR_ID_HAPP 0x078b
1493 #define USB_DEVICE_ID_UGCI_DRIVING 0x0010
1494 #define USB_DEVICE_ID_UGCI_FLYING 0x0020
1495 #define USB_DEVICE_ID_UGCI_FIGHTING 0x0030
1497 #define USB_VENDOR_ID_MGE 0x0463
1498 #define USB_DEVICE_ID_MGE_UPS 0xffff
1499 #define USB_DEVICE_ID_MGE_UPS1 0x0001
1501 #define USB_VENDOR_ID_ONTRAK 0x0a07
1502 #define USB_DEVICE_ID_ONTRAK_ADU100 0x0064
1504 #define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
1505 #define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
1507 #define USB_VENDOR_ID_A4TECH 0x09da
1508 #define USB_DEVICE_ID_A4TECH_WCP32PU 0x0006
1510 #define USB_VENDOR_ID_AASHIMA 0x06d6
1511 #define USB_DEVICE_ID_AASHIMA_GAMEPAD 0x0025
1512 #define USB_DEVICE_ID_AASHIMA_PREDATOR 0x0026
1514 #define USB_VENDOR_ID_CYPRESS 0x04b4
1515 #define USB_DEVICE_ID_CYPRESS_MOUSE 0x0001
1516 #define USB_DEVICE_ID_CYPRESS_HIDCOM 0x5500
1517 #define USB_DEVICE_ID_CYPRESS_ULTRAMOUSE 0x7417
1519 #define USB_VENDOR_ID_BERKSHIRE 0x0c98
1520 #define USB_DEVICE_ID_BERKSHIRE_PCWD 0x1140
1522 #define USB_VENDOR_ID_ALPS 0x0433
1523 #define USB_DEVICE_ID_IBM_GAMEPAD 0x1101
1525 #define USB_VENDOR_ID_SAITEK 0x06a3
1526 #define USB_DEVICE_ID_SAITEK_RUMBLEPAD 0xff17
1528 #define USB_VENDOR_ID_NEC 0x073e
1529 #define USB_DEVICE_ID_NEC_USB_GAME_PAD 0x0301
1531 #define USB_VENDOR_ID_CHIC 0x05fe
1532 #define USB_DEVICE_ID_CHIC_GAMEPAD 0x0014
1534 #define USB_VENDOR_ID_GLAB 0x06c2
1535 #define USB_DEVICE_ID_4_PHIDGETSERVO_30 0x0038
1536 #define USB_DEVICE_ID_1_PHIDGETSERVO_30 0x0039
1537 #define USB_DEVICE_ID_8_8_8_IF_KIT 0x0045
1538 #define USB_DEVICE_ID_0_0_4_IF_KIT 0x0040
1539 #define USB_DEVICE_ID_0_8_8_IF_KIT 0x0053
1541 #define USB_VENDOR_ID_WISEGROUP 0x0925
1542 #define USB_DEVICE_ID_1_PHIDGETSERVO_20 0x8101
1543 #define USB_DEVICE_ID_4_PHIDGETSERVO_20 0x8104
1544 #define USB_DEVICE_ID_DUAL_USB_JOYPAD 0x8866
1546 #define USB_VENDOR_ID_WISEGROUP_LTD 0x6677
1547 #define USB_DEVICE_ID_SMARTJOY_DUAL_PLUS 0x8802
1549 #define USB_VENDOR_ID_CODEMERCS 0x07c0
1550 #define USB_DEVICE_ID_CODEMERCS_IOW40 0x1500
1551 #define USB_DEVICE_ID_CODEMERCS_IOW24 0x1501
1552 #define USB_DEVICE_ID_CODEMERCS_IOW48 0x1502
1553 #define USB_DEVICE_ID_CODEMERCS_IOW28 0x1503
1555 #define USB_VENDOR_ID_DELORME 0x1163
1556 #define USB_DEVICE_ID_DELORME_EARTHMATE 0x0100
1557 #define USB_DEVICE_ID_DELORME_EM_LT20 0x0200
1559 #define USB_VENDOR_ID_MCC 0x09db
1560 #define USB_DEVICE_ID_MCC_PMD1024LS 0x0076
1561 #define USB_DEVICE_ID_MCC_PMD1208LS 0x007a
1563 #define USB_VENDOR_ID_VERNIER 0x08f7
1564 #define USB_DEVICE_ID_VERNIER_LABPRO 0x0001
1565 #define USB_DEVICE_ID_VERNIER_GOTEMP 0x0002
1566 #define USB_DEVICE_ID_VERNIER_SKIP 0x0003
1567 #define USB_DEVICE_ID_VERNIER_CYCLOPS 0x0004
1569 #define USB_VENDOR_ID_LD 0x0f11
1570 #define USB_DEVICE_ID_LD_CASSY 0x1000
1571 #define USB_DEVICE_ID_LD_POCKETCASSY 0x1010
1572 #define USB_DEVICE_ID_LD_MOBILECASSY 0x1020
1573 #define USB_DEVICE_ID_LD_JWM 0x1080
1574 #define USB_DEVICE_ID_LD_DMMP 0x1081
1575 #define USB_DEVICE_ID_LD_UMIP 0x1090
1576 #define USB_DEVICE_ID_LD_XRAY1 0x1100
1577 #define USB_DEVICE_ID_LD_XRAY2 0x1101
1578 #define USB_DEVICE_ID_LD_VIDEOCOM 0x1200
1579 #define USB_DEVICE_ID_LD_COM3LAB 0x2000
1580 #define USB_DEVICE_ID_LD_TELEPORT 0x2010
1581 #define USB_DEVICE_ID_LD_NETWORKANALYSER 0x2020
1582 #define USB_DEVICE_ID_LD_POWERCONTROL 0x2030
1583 #define USB_DEVICE_ID_LD_MACHINETEST 0x2040
1585 #define USB_VENDOR_ID_APPLE 0x05ac
1586 #define USB_DEVICE_ID_APPLE_MIGHTYMOUSE 0x0304
1588 #define USB_VENDOR_ID_CHERRY 0x046a
1589 #define USB_DEVICE_ID_CHERRY_CYMOTION 0x0023
1591 #define USB_VENDOR_ID_YEALINK 0x6993
1592 #define USB_DEVICE_ID_YEALINK_P1K_P4K_B2K 0xb001
1594 * Alphabetically sorted blacklist by quirk type.
1597 static const struct hid_blacklist
{
1601 } hid_blacklist
[] = {
1603 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_01
, HID_QUIRK_IGNORE
},
1604 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_10
, HID_QUIRK_IGNORE
},
1605 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_20
, HID_QUIRK_IGNORE
},
1606 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_21
, HID_QUIRK_IGNORE
},
1607 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_22
, HID_QUIRK_IGNORE
},
1608 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_23
, HID_QUIRK_IGNORE
},
1609 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_24
, HID_QUIRK_IGNORE
},
1610 { USB_VENDOR_ID_BERKSHIRE
, USB_DEVICE_ID_BERKSHIRE_PCWD
, HID_QUIRK_IGNORE
},
1611 { USB_VENDOR_ID_CODEMERCS
, USB_DEVICE_ID_CODEMERCS_IOW40
, HID_QUIRK_IGNORE
},
1612 { USB_VENDOR_ID_CODEMERCS
, USB_DEVICE_ID_CODEMERCS_IOW24
, HID_QUIRK_IGNORE
},
1613 { USB_VENDOR_ID_CODEMERCS
, USB_DEVICE_ID_CODEMERCS_IOW48
, HID_QUIRK_IGNORE
},
1614 { USB_VENDOR_ID_CODEMERCS
, USB_DEVICE_ID_CODEMERCS_IOW28
, HID_QUIRK_IGNORE
},
1615 { USB_VENDOR_ID_CYPRESS
, USB_DEVICE_ID_CYPRESS_HIDCOM
, HID_QUIRK_IGNORE
},
1616 { USB_VENDOR_ID_CYPRESS
, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE
, HID_QUIRK_IGNORE
},
1617 { USB_VENDOR_ID_DELORME
, USB_DEVICE_ID_DELORME_EARTHMATE
, HID_QUIRK_IGNORE
},
1618 { USB_VENDOR_ID_DELORME
, USB_DEVICE_ID_DELORME_EM_LT20
, HID_QUIRK_IGNORE
},
1619 { USB_VENDOR_ID_ESSENTIAL_REALITY
, USB_DEVICE_ID_ESSENTIAL_REALITY_P5
, HID_QUIRK_IGNORE
},
1620 { USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_4_PHIDGETSERVO_30
, HID_QUIRK_IGNORE
},
1621 { USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_1_PHIDGETSERVO_30
, HID_QUIRK_IGNORE
},
1622 { USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_8_8_8_IF_KIT
, HID_QUIRK_IGNORE
},
1623 { USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_0_0_4_IF_KIT
, HID_QUIRK_IGNORE
},
1624 { USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_0_8_8_IF_KIT
, HID_QUIRK_IGNORE
},
1625 { USB_VENDOR_ID_GRIFFIN
, USB_DEVICE_ID_POWERMATE
, HID_QUIRK_IGNORE
},
1626 { USB_VENDOR_ID_GRIFFIN
, USB_DEVICE_ID_SOUNDKNOB
, HID_QUIRK_IGNORE
},
1627 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_90
, HID_QUIRK_IGNORE
},
1628 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_100
, HID_QUIRK_IGNORE
},
1629 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_101
, HID_QUIRK_IGNORE
},
1630 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_103
, HID_QUIRK_IGNORE
},
1631 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_104
, HID_QUIRK_IGNORE
},
1632 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_105
, HID_QUIRK_IGNORE
},
1633 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_106
, HID_QUIRK_IGNORE
},
1634 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_107
, HID_QUIRK_IGNORE
},
1635 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_108
, HID_QUIRK_IGNORE
},
1636 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_200
, HID_QUIRK_IGNORE
},
1637 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_201
, HID_QUIRK_IGNORE
},
1638 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_202
, HID_QUIRK_IGNORE
},
1639 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_203
, HID_QUIRK_IGNORE
},
1640 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_204
, HID_QUIRK_IGNORE
},
1641 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_205
, HID_QUIRK_IGNORE
},
1642 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_206
, HID_QUIRK_IGNORE
},
1643 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_207
, HID_QUIRK_IGNORE
},
1644 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_300
, HID_QUIRK_IGNORE
},
1645 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_301
, HID_QUIRK_IGNORE
},
1646 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_302
, HID_QUIRK_IGNORE
},
1647 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_303
, HID_QUIRK_IGNORE
},
1648 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_304
, HID_QUIRK_IGNORE
},
1649 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_305
, HID_QUIRK_IGNORE
},
1650 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_306
, HID_QUIRK_IGNORE
},
1651 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_307
, HID_QUIRK_IGNORE
},
1652 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_308
, HID_QUIRK_IGNORE
},
1653 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_309
, HID_QUIRK_IGNORE
},
1654 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_400
, HID_QUIRK_IGNORE
},
1655 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_401
, HID_QUIRK_IGNORE
},
1656 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_402
, HID_QUIRK_IGNORE
},
1657 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_403
, HID_QUIRK_IGNORE
},
1658 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_404
, HID_QUIRK_IGNORE
},
1659 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_405
, HID_QUIRK_IGNORE
},
1660 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_500
, HID_QUIRK_IGNORE
},
1661 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_501
, HID_QUIRK_IGNORE
},
1662 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_502
, HID_QUIRK_IGNORE
},
1663 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_503
, HID_QUIRK_IGNORE
},
1664 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_504
, HID_QUIRK_IGNORE
},
1665 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1000
, HID_QUIRK_IGNORE
},
1666 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1001
, HID_QUIRK_IGNORE
},
1667 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1002
, HID_QUIRK_IGNORE
},
1668 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1003
, HID_QUIRK_IGNORE
},
1669 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1004
, HID_QUIRK_IGNORE
},
1670 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1005
, HID_QUIRK_IGNORE
},
1671 { USB_VENDOR_ID_GTCO
, USB_DEVICE_ID_GTCO_1006
, HID_QUIRK_IGNORE
},
1672 { USB_VENDOR_ID_KBGEAR
, USB_DEVICE_ID_KBGEAR_JAMSTUDIO
, HID_QUIRK_IGNORE
},
1673 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_CASSY
, HID_QUIRK_IGNORE
},
1674 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_POCKETCASSY
, HID_QUIRK_IGNORE
},
1675 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_MOBILECASSY
, HID_QUIRK_IGNORE
},
1676 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_JWM
, HID_QUIRK_IGNORE
},
1677 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_DMMP
, HID_QUIRK_IGNORE
},
1678 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_UMIP
, HID_QUIRK_IGNORE
},
1679 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_XRAY1
, HID_QUIRK_IGNORE
},
1680 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_XRAY2
, HID_QUIRK_IGNORE
},
1681 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_VIDEOCOM
, HID_QUIRK_IGNORE
},
1682 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_COM3LAB
, HID_QUIRK_IGNORE
},
1683 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_TELEPORT
, HID_QUIRK_IGNORE
},
1684 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_NETWORKANALYSER
, HID_QUIRK_IGNORE
},
1685 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_POWERCONTROL
, HID_QUIRK_IGNORE
},
1686 { USB_VENDOR_ID_LD
, USB_DEVICE_ID_LD_MACHINETEST
, HID_QUIRK_IGNORE
},
1687 { USB_VENDOR_ID_MCC
, USB_DEVICE_ID_MCC_PMD1024LS
, HID_QUIRK_IGNORE
},
1688 { USB_VENDOR_ID_MCC
, USB_DEVICE_ID_MCC_PMD1208LS
, HID_QUIRK_IGNORE
},
1689 { USB_VENDOR_ID_MGE
, USB_DEVICE_ID_MGE_UPS
, HID_QUIRK_IGNORE
},
1690 { USB_VENDOR_ID_MGE
, USB_DEVICE_ID_MGE_UPS1
, HID_QUIRK_IGNORE
},
1691 { USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
, HID_QUIRK_IGNORE
},
1692 { USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 100, HID_QUIRK_IGNORE
},
1693 { USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 200, HID_QUIRK_IGNORE
},
1694 { USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 300, HID_QUIRK_IGNORE
},
1695 { USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 400, HID_QUIRK_IGNORE
},
1696 { USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 500, HID_QUIRK_IGNORE
},
1697 { USB_VENDOR_ID_VERNIER
, USB_DEVICE_ID_VERNIER_LABPRO
, HID_QUIRK_IGNORE
},
1698 { USB_VENDOR_ID_VERNIER
, USB_DEVICE_ID_VERNIER_GOTEMP
, HID_QUIRK_IGNORE
},
1699 { USB_VENDOR_ID_VERNIER
, USB_DEVICE_ID_VERNIER_SKIP
, HID_QUIRK_IGNORE
},
1700 { USB_VENDOR_ID_VERNIER
, USB_DEVICE_ID_VERNIER_CYCLOPS
, HID_QUIRK_IGNORE
},
1701 { USB_VENDOR_ID_WISEGROUP
, USB_DEVICE_ID_4_PHIDGETSERVO_20
, HID_QUIRK_IGNORE
},
1702 { USB_VENDOR_ID_WISEGROUP
, USB_DEVICE_ID_1_PHIDGETSERVO_20
, HID_QUIRK_IGNORE
},
1703 { USB_VENDOR_ID_YEALINK
, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K
, HID_QUIRK_IGNORE
},
1705 { USB_VENDOR_ID_ACECAD
, USB_DEVICE_ID_ACECAD_FLAIR
, HID_QUIRK_IGNORE
},
1706 { USB_VENDOR_ID_ACECAD
, USB_DEVICE_ID_ACECAD_302
, HID_QUIRK_IGNORE
},
1708 { USB_VENDOR_ID_ATEN
, USB_DEVICE_ID_ATEN_UC100KM
, HID_QUIRK_NOGET
},
1709 { USB_VENDOR_ID_ATEN
, USB_DEVICE_ID_ATEN_CS124U
, HID_QUIRK_NOGET
},
1710 { USB_VENDOR_ID_ATEN
, USB_DEVICE_ID_ATEN_2PORTKVM
, HID_QUIRK_NOGET
},
1711 { USB_VENDOR_ID_ATEN
, USB_DEVICE_ID_ATEN_4PORTKVM
, HID_QUIRK_NOGET
},
1712 { USB_VENDOR_ID_ATEN
, USB_DEVICE_ID_ATEN_4PORTKVMC
, HID_QUIRK_NOGET
},
1713 { USB_VENDOR_ID_WISEGROUP
, USB_DEVICE_ID_DUAL_USB_JOYPAD
, HID_QUIRK_NOGET
| HID_QUIRK_MULTI_INPUT
},
1714 { USB_VENDOR_ID_WISEGROUP_LTD
, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS
, HID_QUIRK_NOGET
| HID_QUIRK_MULTI_INPUT
},
1716 { USB_VENDOR_ID_APPLE
, USB_DEVICE_ID_APPLE_MIGHTYMOUSE
, HID_QUIRK_MIGHTYMOUSE
| HID_QUIRK_INVERT_HWHEEL
},
1717 { USB_VENDOR_ID_A4TECH
, USB_DEVICE_ID_A4TECH_WCP32PU
, HID_QUIRK_2WHEEL_MOUSE_HACK_7
},
1718 { USB_VENDOR_ID_CYPRESS
, USB_DEVICE_ID_CYPRESS_MOUSE
, HID_QUIRK_2WHEEL_MOUSE_HACK_5
},
1720 { USB_VENDOR_ID_AASHIMA
, USB_DEVICE_ID_AASHIMA_GAMEPAD
, HID_QUIRK_BADPAD
},
1721 { USB_VENDOR_ID_AASHIMA
, USB_DEVICE_ID_AASHIMA_PREDATOR
, HID_QUIRK_BADPAD
},
1722 { USB_VENDOR_ID_ALPS
, USB_DEVICE_ID_IBM_GAMEPAD
, HID_QUIRK_BADPAD
},
1723 { USB_VENDOR_ID_CHIC
, USB_DEVICE_ID_CHIC_GAMEPAD
, HID_QUIRK_BADPAD
},
1724 { USB_VENDOR_ID_HAPP
, USB_DEVICE_ID_UGCI_DRIVING
, HID_QUIRK_BADPAD
| HID_QUIRK_MULTI_INPUT
},
1725 { USB_VENDOR_ID_HAPP
, USB_DEVICE_ID_UGCI_FLYING
, HID_QUIRK_BADPAD
| HID_QUIRK_MULTI_INPUT
},
1726 { USB_VENDOR_ID_HAPP
, USB_DEVICE_ID_UGCI_FIGHTING
, HID_QUIRK_BADPAD
| HID_QUIRK_MULTI_INPUT
},
1727 { USB_VENDOR_ID_NEC
, USB_DEVICE_ID_NEC_USB_GAME_PAD
, HID_QUIRK_BADPAD
},
1728 { USB_VENDOR_ID_SAITEK
, USB_DEVICE_ID_SAITEK_RUMBLEPAD
, HID_QUIRK_BADPAD
},
1729 { USB_VENDOR_ID_TOPMAX
, USB_DEVICE_ID_TOPMAX_COBRAPAD
, HID_QUIRK_BADPAD
},
1731 { USB_VENDOR_ID_CHERRY
, USB_DEVICE_ID_CHERRY_CYMOTION
, HID_QUIRK_CYMOTION
},
1733 { USB_VENDOR_ID_APPLE
, 0x020E, HID_QUIRK_POWERBOOK_HAS_FN
},
1734 { USB_VENDOR_ID_APPLE
, 0x020F, HID_QUIRK_POWERBOOK_HAS_FN
},
1735 { USB_VENDOR_ID_APPLE
, 0x0214, HID_QUIRK_POWERBOOK_HAS_FN
},
1736 { USB_VENDOR_ID_APPLE
, 0x0215, HID_QUIRK_POWERBOOK_HAS_FN
},
1737 { USB_VENDOR_ID_APPLE
, 0x0216, HID_QUIRK_POWERBOOK_HAS_FN
},
1738 { USB_VENDOR_ID_APPLE
, 0x0217, HID_QUIRK_POWERBOOK_HAS_FN
},
1739 { USB_VENDOR_ID_APPLE
, 0x0218, HID_QUIRK_POWERBOOK_HAS_FN
},
1740 { USB_VENDOR_ID_APPLE
, 0x0219, HID_QUIRK_POWERBOOK_HAS_FN
},
1741 { USB_VENDOR_ID_APPLE
, 0x030A, HID_QUIRK_POWERBOOK_HAS_FN
},
1742 { USB_VENDOR_ID_APPLE
, 0x030B, HID_QUIRK_POWERBOOK_HAS_FN
},
1744 { USB_VENDOR_ID_PANJIT
, 0x0001, HID_QUIRK_IGNORE
},
1745 { USB_VENDOR_ID_PANJIT
, 0x0002, HID_QUIRK_IGNORE
},
1746 { USB_VENDOR_ID_PANJIT
, 0x0003, HID_QUIRK_IGNORE
},
1747 { USB_VENDOR_ID_PANJIT
, 0x0004, HID_QUIRK_IGNORE
},
1753 * Traverse the supplied list of reports and find the longest
1755 static void hid_find_max_report(struct hid_device
*hid
, unsigned int type
, int *max
)
1757 struct hid_report
*report
;
1760 list_for_each_entry(report
, &hid
->report_enum
[type
].report_list
, list
) {
1761 size
= ((report
->size
- 1) >> 3) + 1;
1762 if (type
== HID_INPUT_REPORT
&& hid
->report_enum
[type
].numbered
)
1769 static int hid_alloc_buffers(struct usb_device
*dev
, struct hid_device
*hid
)
1771 if (!(hid
->inbuf
= usb_buffer_alloc(dev
, hid
->bufsize
, SLAB_ATOMIC
, &hid
->inbuf_dma
)))
1773 if (!(hid
->outbuf
= usb_buffer_alloc(dev
, hid
->bufsize
, SLAB_ATOMIC
, &hid
->outbuf_dma
)))
1775 if (!(hid
->cr
= usb_buffer_alloc(dev
, sizeof(*(hid
->cr
)), SLAB_ATOMIC
, &hid
->cr_dma
)))
1777 if (!(hid
->ctrlbuf
= usb_buffer_alloc(dev
, hid
->bufsize
, SLAB_ATOMIC
, &hid
->ctrlbuf_dma
)))
1783 static void hid_free_buffers(struct usb_device
*dev
, struct hid_device
*hid
)
1786 usb_buffer_free(dev
, hid
->bufsize
, hid
->inbuf
, hid
->inbuf_dma
);
1788 usb_buffer_free(dev
, hid
->bufsize
, hid
->outbuf
, hid
->outbuf_dma
);
1790 usb_buffer_free(dev
, sizeof(*(hid
->cr
)), hid
->cr
, hid
->cr_dma
);
1792 usb_buffer_free(dev
, hid
->bufsize
, hid
->ctrlbuf
, hid
->ctrlbuf_dma
);
1796 * Cherry Cymotion keyboard have an invalid HID report descriptor,
1797 * that needs fixing before we can parse it.
1800 static void hid_fixup_cymotion_descriptor(char *rdesc
, int rsize
)
1802 if (rsize
>= 17 && rdesc
[11] == 0x3c && rdesc
[12] == 0x02) {
1803 info("Fixing up Cherry Cymotion report descriptor");
1804 rdesc
[11] = rdesc
[16] = 0xff;
1805 rdesc
[12] = rdesc
[17] = 0x03;
1809 static struct hid_device
*usb_hid_configure(struct usb_interface
*intf
)
1811 struct usb_host_interface
*interface
= intf
->cur_altsetting
;
1812 struct usb_device
*dev
= interface_to_usbdev (intf
);
1813 struct hid_descriptor
*hdesc
;
1814 struct hid_device
*hid
;
1815 unsigned quirks
= 0, rsize
= 0;
1817 int n
, len
, insize
= 0;
1819 /* Ignore all Wacom devices */
1820 if (dev
->descriptor
.idVendor
== USB_VENDOR_ID_WACOM
)
1823 for (n
= 0; hid_blacklist
[n
].idVendor
; n
++)
1824 if ((hid_blacklist
[n
].idVendor
== le16_to_cpu(dev
->descriptor
.idVendor
)) &&
1825 (hid_blacklist
[n
].idProduct
== le16_to_cpu(dev
->descriptor
.idProduct
)))
1826 quirks
= hid_blacklist
[n
].quirks
;
1828 /* Many keyboards and mice don't like to be polled for reports,
1829 * so we will always set the HID_QUIRK_NOGET flag for them. */
1830 if (interface
->desc
.bInterfaceSubClass
== USB_INTERFACE_SUBCLASS_BOOT
) {
1831 if (interface
->desc
.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_KEYBOARD
||
1832 interface
->desc
.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_MOUSE
)
1833 quirks
|= HID_QUIRK_NOGET
;
1836 if (quirks
& HID_QUIRK_IGNORE
)
1839 if (usb_get_extra_descriptor(interface
, HID_DT_HID
, &hdesc
) &&
1840 (!interface
->desc
.bNumEndpoints
||
1841 usb_get_extra_descriptor(&interface
->endpoint
[0], HID_DT_HID
, &hdesc
))) {
1842 dbg("class descriptor not present\n");
1846 for (n
= 0; n
< hdesc
->bNumDescriptors
; n
++)
1847 if (hdesc
->desc
[n
].bDescriptorType
== HID_DT_REPORT
)
1848 rsize
= le16_to_cpu(hdesc
->desc
[n
].wDescriptorLength
);
1850 if (!rsize
|| rsize
> HID_MAX_DESCRIPTOR_SIZE
) {
1851 dbg("weird size of report descriptor (%u)", rsize
);
1855 if (!(rdesc
= kmalloc(rsize
, GFP_KERNEL
))) {
1856 dbg("couldn't allocate rdesc memory");
1860 hid_set_idle(dev
, interface
->desc
.bInterfaceNumber
, 0, 0);
1862 if ((n
= hid_get_class_descriptor(dev
, interface
->desc
.bInterfaceNumber
, HID_DT_REPORT
, rdesc
, rsize
)) < 0) {
1863 dbg("reading report descriptor failed");
1868 if ((quirks
& HID_QUIRK_CYMOTION
))
1869 hid_fixup_cymotion_descriptor(rdesc
, rsize
);
1872 printk(KERN_DEBUG __FILE__
": report descriptor (size %u, read %d) = ", rsize
, n
);
1873 for (n
= 0; n
< rsize
; n
++)
1874 printk(" %02x", (unsigned char) rdesc
[n
]);
1878 if (!(hid
= hid_parse_report(rdesc
, n
))) {
1879 dbg("parsing report descriptor failed");
1885 hid
->quirks
= quirks
;
1887 hid
->bufsize
= HID_MIN_BUFFER_SIZE
;
1888 hid_find_max_report(hid
, HID_INPUT_REPORT
, &hid
->bufsize
);
1889 hid_find_max_report(hid
, HID_OUTPUT_REPORT
, &hid
->bufsize
);
1890 hid_find_max_report(hid
, HID_FEATURE_REPORT
, &hid
->bufsize
);
1892 if (hid
->bufsize
> HID_MAX_BUFFER_SIZE
)
1893 hid
->bufsize
= HID_MAX_BUFFER_SIZE
;
1895 hid_find_max_report(hid
, HID_INPUT_REPORT
, &insize
);
1897 if (insize
> HID_MAX_BUFFER_SIZE
)
1898 insize
= HID_MAX_BUFFER_SIZE
;
1900 if (hid_alloc_buffers(dev
, hid
)) {
1901 hid_free_buffers(dev
, hid
);
1905 for (n
= 0; n
< interface
->desc
.bNumEndpoints
; n
++) {
1907 struct usb_endpoint_descriptor
*endpoint
;
1911 endpoint
= &interface
->endpoint
[n
].desc
;
1912 if ((endpoint
->bmAttributes
& 3) != 3) /* Not an interrupt endpoint */
1915 interval
= endpoint
->bInterval
;
1917 /* Change the polling interval of mice. */
1918 if (hid
->collection
->usage
== HID_GD_MOUSE
&& hid_mousepoll_interval
> 0)
1919 interval
= hid_mousepoll_interval
;
1921 if (endpoint
->bEndpointAddress
& USB_DIR_IN
) {
1924 if (!(hid
->urbin
= usb_alloc_urb(0, GFP_KERNEL
)))
1926 pipe
= usb_rcvintpipe(dev
, endpoint
->bEndpointAddress
);
1927 usb_fill_int_urb(hid
->urbin
, dev
, pipe
, hid
->inbuf
, insize
,
1928 hid_irq_in
, hid
, interval
);
1929 hid
->urbin
->transfer_dma
= hid
->inbuf_dma
;
1930 hid
->urbin
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
1934 if (!(hid
->urbout
= usb_alloc_urb(0, GFP_KERNEL
)))
1936 pipe
= usb_sndintpipe(dev
, endpoint
->bEndpointAddress
);
1937 usb_fill_int_urb(hid
->urbout
, dev
, pipe
, hid
->outbuf
, 0,
1938 hid_irq_out
, hid
, interval
);
1939 hid
->urbout
->transfer_dma
= hid
->outbuf_dma
;
1940 hid
->urbout
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
1945 err("couldn't find an input interrupt endpoint");
1949 init_waitqueue_head(&hid
->wait
);
1951 INIT_WORK(&hid
->reset_work
, hid_reset
, hid
);
1952 setup_timer(&hid
->io_retry
, hid_retry_timeout
, (unsigned long) hid
);
1954 spin_lock_init(&hid
->inlock
);
1955 spin_lock_init(&hid
->outlock
);
1956 spin_lock_init(&hid
->ctrllock
);
1958 hid
->version
= le16_to_cpu(hdesc
->bcdHID
);
1959 hid
->country
= hdesc
->bCountryCode
;
1962 hid
->ifnum
= interface
->desc
.bInterfaceNumber
;
1966 if (dev
->manufacturer
)
1967 strlcpy(hid
->name
, dev
->manufacturer
, sizeof(hid
->name
));
1970 if (dev
->manufacturer
)
1971 strlcat(hid
->name
, " ", sizeof(hid
->name
));
1972 strlcat(hid
->name
, dev
->product
, sizeof(hid
->name
));
1975 if (!strlen(hid
->name
))
1976 snprintf(hid
->name
, sizeof(hid
->name
), "HID %04x:%04x",
1977 le16_to_cpu(dev
->descriptor
.idVendor
),
1978 le16_to_cpu(dev
->descriptor
.idProduct
));
1980 usb_make_path(dev
, hid
->phys
, sizeof(hid
->phys
));
1981 strlcat(hid
->phys
, "/input", sizeof(hid
->phys
));
1982 len
= strlen(hid
->phys
);
1983 if (len
< sizeof(hid
->phys
) - 1)
1984 snprintf(hid
->phys
+ len
, sizeof(hid
->phys
) - len
,
1985 "%d", intf
->altsetting
[0].desc
.bInterfaceNumber
);
1987 if (usb_string(dev
, dev
->descriptor
.iSerialNumber
, hid
->uniq
, 64) <= 0)
1990 hid
->urbctrl
= usb_alloc_urb(0, GFP_KERNEL
);
1994 usb_fill_control_urb(hid
->urbctrl
, dev
, 0, (void *) hid
->cr
,
1995 hid
->ctrlbuf
, 1, hid_ctrl
, hid
);
1996 hid
->urbctrl
->setup_dma
= hid
->cr_dma
;
1997 hid
->urbctrl
->transfer_dma
= hid
->ctrlbuf_dma
;
1998 hid
->urbctrl
->transfer_flags
|= (URB_NO_TRANSFER_DMA_MAP
| URB_NO_SETUP_DMA_MAP
);
2005 usb_free_urb(hid
->urbin
);
2007 usb_free_urb(hid
->urbout
);
2009 usb_free_urb(hid
->urbctrl
);
2010 hid_free_buffers(dev
, hid
);
2011 hid_free_device(hid
);
2016 static void hid_disconnect(struct usb_interface
*intf
)
2018 struct hid_device
*hid
= usb_get_intfdata (intf
);
2023 spin_lock_irq(&hid
->inlock
); /* Sync with error handler */
2024 usb_set_intfdata(intf
, NULL
);
2025 spin_unlock_irq(&hid
->inlock
);
2026 usb_kill_urb(hid
->urbin
);
2027 usb_kill_urb(hid
->urbout
);
2028 usb_kill_urb(hid
->urbctrl
);
2030 del_timer_sync(&hid
->io_retry
);
2031 flush_scheduled_work();
2033 if (hid
->claimed
& HID_CLAIMED_INPUT
)
2034 hidinput_disconnect(hid
);
2035 if (hid
->claimed
& HID_CLAIMED_HIDDEV
)
2036 hiddev_disconnect(hid
);
2038 usb_free_urb(hid
->urbin
);
2039 usb_free_urb(hid
->urbctrl
);
2041 usb_free_urb(hid
->urbout
);
2043 hid_free_buffers(hid
->dev
, hid
);
2044 hid_free_device(hid
);
2047 static int hid_probe(struct usb_interface
*intf
, const struct usb_device_id
*id
)
2049 struct hid_device
*hid
;
2054 dbg("HID probe called for ifnum %d",
2055 intf
->altsetting
->desc
.bInterfaceNumber
);
2057 if (!(hid
= usb_hid_configure(intf
)))
2060 hid_init_reports(hid
);
2061 hid_dump_device(hid
);
2063 if (!hidinput_connect(hid
))
2064 hid
->claimed
|= HID_CLAIMED_INPUT
;
2065 if (!hiddev_connect(hid
))
2066 hid
->claimed
|= HID_CLAIMED_HIDDEV
;
2068 usb_set_intfdata(intf
, hid
);
2070 if (!hid
->claimed
) {
2071 printk ("HID device not claimed by input or hiddev\n");
2072 hid_disconnect(intf
);
2078 if (hid
->claimed
& HID_CLAIMED_INPUT
)
2080 if (hid
->claimed
== (HID_CLAIMED_INPUT
| HID_CLAIMED_HIDDEV
))
2082 if (hid
->claimed
& HID_CLAIMED_HIDDEV
)
2083 printk("hiddev%d", hid
->minor
);
2086 for (i
= 0; i
< hid
->maxcollection
; i
++) {
2087 if (hid
->collection
[i
].type
== HID_COLLECTION_APPLICATION
&&
2088 (hid
->collection
[i
].usage
& HID_USAGE_PAGE
) == HID_UP_GENDESK
&&
2089 (hid
->collection
[i
].usage
& 0xffff) < ARRAY_SIZE(hid_types
)) {
2090 c
= hid_types
[hid
->collection
[i
].usage
& 0xffff];
2095 usb_make_path(interface_to_usbdev(intf
), path
, 63);
2097 printk(": USB HID v%x.%02x %s [%s] on %s\n",
2098 hid
->version
>> 8, hid
->version
& 0xff, c
, hid
->name
, path
);
2103 static int hid_suspend(struct usb_interface
*intf
, pm_message_t message
)
2105 struct hid_device
*hid
= usb_get_intfdata (intf
);
2107 spin_lock_irq(&hid
->inlock
); /* Sync with error handler */
2108 set_bit(HID_SUSPENDED
, &hid
->iofl
);
2109 spin_unlock_irq(&hid
->inlock
);
2110 del_timer(&hid
->io_retry
);
2111 usb_kill_urb(hid
->urbin
);
2112 dev_dbg(&intf
->dev
, "suspend\n");
2116 static int hid_resume(struct usb_interface
*intf
)
2118 struct hid_device
*hid
= usb_get_intfdata (intf
);
2121 clear_bit(HID_SUSPENDED
, &hid
->iofl
);
2122 hid
->retry_delay
= 0;
2123 status
= hid_start_in(hid
);
2124 dev_dbg(&intf
->dev
, "resume status %d\n", status
);
2128 /* Treat USB reset pretty much the same as suspend/resume */
2129 static void hid_pre_reset(struct usb_interface
*intf
)
2131 /* FIXME: What if the interface is already suspended? */
2132 hid_suspend(intf
, PMSG_ON
);
2135 static void hid_post_reset(struct usb_interface
*intf
)
2137 struct usb_device
*dev
= interface_to_usbdev (intf
);
2139 hid_set_idle(dev
, intf
->cur_altsetting
->desc
.bInterfaceNumber
, 0, 0);
2140 /* FIXME: Any more reinitialization needed? */
2145 static struct usb_device_id hid_usb_ids
[] = {
2146 { .match_flags
= USB_DEVICE_ID_MATCH_INT_CLASS
,
2147 .bInterfaceClass
= USB_INTERFACE_CLASS_HID
},
2148 { } /* Terminating entry */
2151 MODULE_DEVICE_TABLE (usb
, hid_usb_ids
);
2153 static struct usb_driver hid_driver
= {
2156 .disconnect
= hid_disconnect
,
2157 .suspend
= hid_suspend
,
2158 .resume
= hid_resume
,
2159 .pre_reset
= hid_pre_reset
,
2160 .post_reset
= hid_post_reset
,
2161 .id_table
= hid_usb_ids
,
2164 static int __init
hid_init(void)
2167 retval
= hiddev_init();
2169 goto hiddev_init_fail
;
2170 retval
= usb_register(&hid_driver
);
2172 goto usb_register_fail
;
2173 info(DRIVER_VERSION
":" DRIVER_DESC
);
2182 static void __exit
hid_exit(void)
2184 usb_deregister(&hid_driver
);
2188 module_init(hid_init
);
2189 module_exit(hid_exit
);
2191 MODULE_AUTHOR(DRIVER_AUTHOR
);
2192 MODULE_DESCRIPTION(DRIVER_DESC
);
2193 MODULE_LICENSE(DRIVER_LICENSE
);