2 * USB HID support for Linux
4 * Copyright (c) 1999 Andreas Gal
5 * Copyright (c) 2000-2001 Vojtech Pavlik <vojtech@suse.cz>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the Free
11 * Software Foundation; either version 2 of the License, or (at your option)
15 #include <linux/module.h>
16 #include <linux/slab.h>
17 #include <linux/init.h>
18 #include <linux/kernel.h>
19 #include <linux/sched.h>
20 #include <linux/list.h>
22 #include <linux/smp_lock.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>
32 #include <linux/usb.h>
35 #include <linux/hiddev.h>
41 #define DRIVER_VERSION "v2.01"
42 #define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik"
43 #define DRIVER_DESC "USB HID core driver"
44 #define DRIVER_LICENSE "GPL"
46 static char *hid_types
[] = {"Device", "Pointer", "Mouse", "Device", "Joystick",
47 "Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"};
52 static unsigned int hid_mousepoll_interval
;
53 module_param_named(mousepoll
, hid_mousepoll_interval
, uint
, 0644);
54 MODULE_PARM_DESC(mousepoll
, "Polling interval of mice");
57 * Register a new report for a device.
60 static struct hid_report
*hid_register_report(struct hid_device
*device
, unsigned type
, unsigned id
)
62 struct hid_report_enum
*report_enum
= device
->report_enum
+ type
;
63 struct hid_report
*report
;
65 if (report_enum
->report_id_hash
[id
])
66 return report_enum
->report_id_hash
[id
];
68 if (!(report
= kmalloc(sizeof(struct hid_report
), GFP_KERNEL
)))
70 memset(report
, 0, sizeof(struct hid_report
));
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
= kmalloc(sizeof(struct hid_field
) + usages
* sizeof(struct hid_usage
)
100 + values
* sizeof(unsigned), GFP_KERNEL
))) return NULL
;
102 memset(field
, 0, sizeof(struct hid_field
) + usages
* sizeof(struct hid_usage
)
103 + values
* sizeof(unsigned));
105 field
->index
= report
->maxfield
++;
106 report
->field
[field
->index
] = field
;
107 field
->usage
= (struct hid_usage
*)(field
+ 1);
108 field
->value
= (unsigned *)(field
->usage
+ usages
);
109 field
->report
= report
;
115 * Open a collection. The type/usage is pushed on the stack.
118 static int open_collection(struct hid_parser
*parser
, unsigned type
)
120 struct hid_collection
*collection
;
123 usage
= parser
->local
.usage
[0];
125 if (parser
->collection_stack_ptr
== HID_COLLECTION_STACK_SIZE
) {
126 dbg("collection stack overflow");
130 if (parser
->device
->maxcollection
== parser
->device
->collection_size
) {
131 collection
= kmalloc(sizeof(struct hid_collection
) *
132 parser
->device
->collection_size
* 2, GFP_KERNEL
);
133 if (collection
== NULL
) {
134 dbg("failed to reallocate collection array");
137 memcpy(collection
, parser
->device
->collection
,
138 sizeof(struct hid_collection
) *
139 parser
->device
->collection_size
);
140 memset(collection
+ parser
->device
->collection_size
, 0,
141 sizeof(struct hid_collection
) *
142 parser
->device
->collection_size
);
143 kfree(parser
->device
->collection
);
144 parser
->device
->collection
= collection
;
145 parser
->device
->collection_size
*= 2;
148 parser
->collection_stack
[parser
->collection_stack_ptr
++] =
149 parser
->device
->maxcollection
;
151 collection
= parser
->device
->collection
+
152 parser
->device
->maxcollection
++;
153 collection
->type
= type
;
154 collection
->usage
= usage
;
155 collection
->level
= parser
->collection_stack_ptr
- 1;
157 if (type
== HID_COLLECTION_APPLICATION
)
158 parser
->device
->maxapplication
++;
164 * Close a collection.
167 static int close_collection(struct hid_parser
*parser
)
169 if (!parser
->collection_stack_ptr
) {
170 dbg("collection stack underflow");
173 parser
->collection_stack_ptr
--;
178 * Climb up the stack, search for the specified collection type
179 * and return the usage.
182 static unsigned hid_lookup_collection(struct hid_parser
*parser
, unsigned type
)
185 for (n
= parser
->collection_stack_ptr
- 1; n
>= 0; n
--)
186 if (parser
->device
->collection
[parser
->collection_stack
[n
]].type
== type
)
187 return parser
->device
->collection
[parser
->collection_stack
[n
]].usage
;
188 return 0; /* we know nothing about this usage type */
192 * Add a usage to the temporary parser table.
195 static int hid_add_usage(struct hid_parser
*parser
, unsigned usage
)
197 if (parser
->local
.usage_index
>= HID_MAX_USAGES
) {
198 dbg("usage index exceeded");
201 parser
->local
.usage
[parser
->local
.usage_index
] = usage
;
202 parser
->local
.collection_index
[parser
->local
.usage_index
] =
203 parser
->collection_stack_ptr
?
204 parser
->collection_stack
[parser
->collection_stack_ptr
- 1] : 0;
205 parser
->local
.usage_index
++;
210 * Register a new field for this report.
213 static int hid_add_field(struct hid_parser
*parser
, unsigned report_type
, unsigned flags
)
215 struct hid_report
*report
;
216 struct hid_field
*field
;
221 if (!(report
= hid_register_report(parser
->device
, report_type
, parser
->global
.report_id
))) {
222 dbg("hid_register_report failed");
226 if (parser
->global
.logical_maximum
< parser
->global
.logical_minimum
) {
227 dbg("logical range invalid %d %d", parser
->global
.logical_minimum
, parser
->global
.logical_maximum
);
231 offset
= report
->size
;
232 report
->size
+= parser
->global
.report_size
* parser
->global
.report_count
;
234 if (!parser
->local
.usage_index
) /* Ignore padding fields */
237 usages
= max_t(int, parser
->local
.usage_index
, parser
->global
.report_count
);
239 if ((field
= hid_register_field(report
, usages
, parser
->global
.report_count
)) == NULL
)
242 field
->physical
= hid_lookup_collection(parser
, HID_COLLECTION_PHYSICAL
);
243 field
->logical
= hid_lookup_collection(parser
, HID_COLLECTION_LOGICAL
);
244 field
->application
= hid_lookup_collection(parser
, HID_COLLECTION_APPLICATION
);
246 for (i
= 0; i
< usages
; i
++) {
248 /* Duplicate the last usage we parsed if we have excess values */
249 if (i
>= parser
->local
.usage_index
)
250 j
= parser
->local
.usage_index
- 1;
251 field
->usage
[i
].hid
= parser
->local
.usage
[j
];
252 field
->usage
[i
].collection_index
=
253 parser
->local
.collection_index
[j
];
256 field
->maxusage
= usages
;
257 field
->flags
= flags
;
258 field
->report_offset
= offset
;
259 field
->report_type
= report_type
;
260 field
->report_size
= parser
->global
.report_size
;
261 field
->report_count
= parser
->global
.report_count
;
262 field
->logical_minimum
= parser
->global
.logical_minimum
;
263 field
->logical_maximum
= parser
->global
.logical_maximum
;
264 field
->physical_minimum
= parser
->global
.physical_minimum
;
265 field
->physical_maximum
= parser
->global
.physical_maximum
;
266 field
->unit_exponent
= parser
->global
.unit_exponent
;
267 field
->unit
= parser
->global
.unit
;
273 * Read data value from item.
276 static __inline__ __u32
item_udata(struct hid_item
*item
)
278 switch (item
->size
) {
279 case 1: return item
->data
.u8
;
280 case 2: return item
->data
.u16
;
281 case 4: return item
->data
.u32
;
286 static __inline__ __s32
item_sdata(struct hid_item
*item
)
288 switch (item
->size
) {
289 case 1: return item
->data
.s8
;
290 case 2: return item
->data
.s16
;
291 case 4: return item
->data
.s32
;
297 * Process a global item.
300 static int hid_parser_global(struct hid_parser
*parser
, struct hid_item
*item
)
304 case HID_GLOBAL_ITEM_TAG_PUSH
:
306 if (parser
->global_stack_ptr
== HID_GLOBAL_STACK_SIZE
) {
307 dbg("global enviroment stack overflow");
311 memcpy(parser
->global_stack
+ parser
->global_stack_ptr
++,
312 &parser
->global
, sizeof(struct hid_global
));
315 case HID_GLOBAL_ITEM_TAG_POP
:
317 if (!parser
->global_stack_ptr
) {
318 dbg("global enviroment stack underflow");
322 memcpy(&parser
->global
, parser
->global_stack
+ --parser
->global_stack_ptr
,
323 sizeof(struct hid_global
));
326 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE
:
327 parser
->global
.usage_page
= item_udata(item
);
330 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM
:
331 parser
->global
.logical_minimum
= item_sdata(item
);
334 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM
:
335 if (parser
->global
.logical_minimum
< 0)
336 parser
->global
.logical_maximum
= item_sdata(item
);
338 parser
->global
.logical_maximum
= item_udata(item
);
341 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM
:
342 parser
->global
.physical_minimum
= item_sdata(item
);
345 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM
:
346 if (parser
->global
.physical_minimum
< 0)
347 parser
->global
.physical_maximum
= item_sdata(item
);
349 parser
->global
.physical_maximum
= item_udata(item
);
352 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT
:
353 parser
->global
.unit_exponent
= item_sdata(item
);
356 case HID_GLOBAL_ITEM_TAG_UNIT
:
357 parser
->global
.unit
= item_udata(item
);
360 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE
:
361 if ((parser
->global
.report_size
= item_udata(item
)) > 32) {
362 dbg("invalid report_size %d", parser
->global
.report_size
);
367 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT
:
368 if ((parser
->global
.report_count
= item_udata(item
)) > HID_MAX_USAGES
) {
369 dbg("invalid report_count %d", parser
->global
.report_count
);
374 case HID_GLOBAL_ITEM_TAG_REPORT_ID
:
375 if ((parser
->global
.report_id
= item_udata(item
)) == 0) {
376 dbg("report_id 0 is invalid");
382 dbg("unknown global tag 0x%x", item
->tag
);
388 * Process a local item.
391 static int hid_parser_local(struct hid_parser
*parser
, struct hid_item
*item
)
396 if (item
->size
== 0) {
397 dbg("item data expected for local item");
401 data
= item_udata(item
);
405 case HID_LOCAL_ITEM_TAG_DELIMITER
:
409 * We treat items before the first delimiter
410 * as global to all usage sets (branch 0).
411 * In the moment we process only these global
412 * items and the first delimiter set.
414 if (parser
->local
.delimiter_depth
!= 0) {
415 dbg("nested delimiters");
418 parser
->local
.delimiter_depth
++;
419 parser
->local
.delimiter_branch
++;
421 if (parser
->local
.delimiter_depth
< 1) {
422 dbg("bogus close delimiter");
425 parser
->local
.delimiter_depth
--;
429 case HID_LOCAL_ITEM_TAG_USAGE
:
431 if (parser
->local
.delimiter_branch
> 1) {
432 dbg("alternative usage ignored");
437 data
= (parser
->global
.usage_page
<< 16) + data
;
439 return hid_add_usage(parser
, data
);
441 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM
:
443 if (parser
->local
.delimiter_branch
> 1) {
444 dbg("alternative usage ignored");
449 data
= (parser
->global
.usage_page
<< 16) + data
;
451 parser
->local
.usage_minimum
= data
;
454 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM
:
456 if (parser
->local
.delimiter_branch
> 1) {
457 dbg("alternative usage ignored");
462 data
= (parser
->global
.usage_page
<< 16) + data
;
464 for (n
= parser
->local
.usage_minimum
; n
<= data
; n
++)
465 if (hid_add_usage(parser
, n
)) {
466 dbg("hid_add_usage failed\n");
473 dbg("unknown local item tag 0x%x", item
->tag
);
480 * Process a main item.
483 static int hid_parser_main(struct hid_parser
*parser
, struct hid_item
*item
)
488 data
= item_udata(item
);
491 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION
:
492 ret
= open_collection(parser
, data
& 0xff);
494 case HID_MAIN_ITEM_TAG_END_COLLECTION
:
495 ret
= close_collection(parser
);
497 case HID_MAIN_ITEM_TAG_INPUT
:
498 ret
= hid_add_field(parser
, HID_INPUT_REPORT
, data
);
500 case HID_MAIN_ITEM_TAG_OUTPUT
:
501 ret
= hid_add_field(parser
, HID_OUTPUT_REPORT
, data
);
503 case HID_MAIN_ITEM_TAG_FEATURE
:
504 ret
= hid_add_field(parser
, HID_FEATURE_REPORT
, data
);
507 dbg("unknown main item tag 0x%x", item
->tag
);
511 memset(&parser
->local
, 0, sizeof(parser
->local
)); /* Reset the local parser environment */
517 * Process a reserved item.
520 static int hid_parser_reserved(struct hid_parser
*parser
, struct hid_item
*item
)
522 dbg("reserved item type, tag 0x%x", item
->tag
);
527 * Free a report and all registered fields. The field->usage and
528 * field->value table's are allocated behind the field, so we need
529 * only to free(field) itself.
532 static void hid_free_report(struct hid_report
*report
)
536 for (n
= 0; n
< report
->maxfield
; n
++)
537 kfree(report
->field
[n
]);
542 * Free a device structure, all reports, and all fields.
545 static void hid_free_device(struct hid_device
*device
)
551 for (i
= 0; i
< HID_REPORT_TYPES
; i
++) {
552 struct hid_report_enum
*report_enum
= device
->report_enum
+ i
;
554 for (j
= 0; j
< 256; j
++) {
555 struct hid_report
*report
= report_enum
->report_id_hash
[j
];
557 hid_free_report(report
);
562 kfree(device
->rdesc
);
567 * Fetch a report description item from the data stream. We support long
568 * items, though they are not used yet.
571 static u8
*fetch_item(__u8
*start
, __u8
*end
, struct hid_item
*item
)
575 if ((end
- start
) <= 0)
580 item
->type
= (b
>> 2) & 3;
581 item
->tag
= (b
>> 4) & 15;
583 if (item
->tag
== HID_ITEM_TAG_LONG
) {
585 item
->format
= HID_ITEM_FORMAT_LONG
;
587 if ((end
- start
) < 2)
590 item
->size
= *start
++;
591 item
->tag
= *start
++;
593 if ((end
- start
) < item
->size
)
596 item
->data
.longdata
= start
;
601 item
->format
= HID_ITEM_FORMAT_SHORT
;
604 switch (item
->size
) {
610 if ((end
- start
) < 1)
612 item
->data
.u8
= *start
++;
616 if ((end
- start
) < 2)
618 item
->data
.u16
= le16_to_cpu(get_unaligned((__le16
*)start
));
619 start
= (__u8
*)((__le16
*)start
+ 1);
624 if ((end
- start
) < 4)
626 item
->data
.u32
= le32_to_cpu(get_unaligned((__le32
*)start
));
627 start
= (__u8
*)((__le32
*)start
+ 1);
635 * Parse a report description into a hid_device structure. Reports are
636 * enumerated, fields are attached to these reports.
639 static struct hid_device
*hid_parse_report(__u8
*start
, unsigned size
)
641 struct hid_device
*device
;
642 struct hid_parser
*parser
;
643 struct hid_item item
;
646 static int (*dispatch_type
[])(struct hid_parser
*parser
,
647 struct hid_item
*item
) = {
654 if (!(device
= kmalloc(sizeof(struct hid_device
), GFP_KERNEL
)))
656 memset(device
, 0, sizeof(struct hid_device
));
658 if (!(device
->collection
= kmalloc(sizeof(struct hid_collection
) *
659 HID_DEFAULT_NUM_COLLECTIONS
, GFP_KERNEL
))) {
663 memset(device
->collection
, 0, sizeof(struct hid_collection
) *
664 HID_DEFAULT_NUM_COLLECTIONS
);
665 device
->collection_size
= HID_DEFAULT_NUM_COLLECTIONS
;
667 for (i
= 0; i
< HID_REPORT_TYPES
; i
++)
668 INIT_LIST_HEAD(&device
->report_enum
[i
].report_list
);
670 if (!(device
->rdesc
= (__u8
*)kmalloc(size
, GFP_KERNEL
))) {
671 kfree(device
->collection
);
675 memcpy(device
->rdesc
, start
, size
);
676 device
->rsize
= size
;
678 if (!(parser
= kmalloc(sizeof(struct hid_parser
), GFP_KERNEL
))) {
679 kfree(device
->rdesc
);
680 kfree(device
->collection
);
684 memset(parser
, 0, sizeof(struct hid_parser
));
685 parser
->device
= device
;
688 while ((start
= fetch_item(start
, end
, &item
)) != NULL
) {
690 if (item
.format
!= HID_ITEM_FORMAT_SHORT
) {
691 dbg("unexpected long global item");
692 kfree(device
->collection
);
693 hid_free_device(device
);
698 if (dispatch_type
[item
.type
](parser
, &item
)) {
699 dbg("item %u %u %u %u parsing failed\n",
700 item
.format
, (unsigned)item
.size
, (unsigned)item
.type
, (unsigned)item
.tag
);
701 kfree(device
->collection
);
702 hid_free_device(device
);
708 if (parser
->collection_stack_ptr
) {
709 dbg("unbalanced collection at end of report description");
710 kfree(device
->collection
);
711 hid_free_device(device
);
715 if (parser
->local
.delimiter_depth
) {
716 dbg("unbalanced delimiter at end of report description");
717 kfree(device
->collection
);
718 hid_free_device(device
);
727 dbg("item fetching failed at offset %d\n", (int)(end
- start
));
728 kfree(device
->collection
);
729 hid_free_device(device
);
735 * Convert a signed n-bit integer to signed 32-bit integer. Common
736 * cases are done through the compiler, the screwed things has to be
740 static __inline__ __s32
snto32(__u32 value
, unsigned n
)
743 case 8: return ((__s8
)value
);
744 case 16: return ((__s16
)value
);
745 case 32: return ((__s32
)value
);
747 return value
& (1 << (n
- 1)) ? value
| (-1 << n
) : value
;
751 * Convert a signed 32-bit integer to a signed n-bit integer.
754 static __inline__ __u32
s32ton(__s32 value
, unsigned n
)
756 __s32 a
= value
>> (n
- 1);
758 return value
< 0 ? 1 << (n
- 1) : (1 << (n
- 1)) - 1;
759 return value
& ((1 << n
) - 1);
763 * Extract/implement a data field from/to a report.
766 static __inline__ __u32
extract(__u8
*report
, unsigned offset
, unsigned n
)
768 report
+= (offset
>> 5) << 2; offset
&= 31;
769 return (le64_to_cpu(get_unaligned((__le64
*)report
)) >> offset
) & ((1 << n
) - 1);
772 static __inline__
void implement(__u8
*report
, unsigned offset
, unsigned n
, __u32 value
)
774 report
+= (offset
>> 5) << 2; offset
&= 31;
775 put_unaligned((get_unaligned((__le64
*)report
)
776 & cpu_to_le64(~((((__u64
) 1 << n
) - 1) << offset
)))
777 | cpu_to_le64((__u64
)value
<< offset
), (__le64
*)report
);
781 * Search an array for a value.
784 static __inline__
int search(__s32
*array
, __s32 value
, unsigned n
)
787 if (*array
++ == value
)
793 static void hid_process_event(struct hid_device
*hid
, struct hid_field
*field
, struct hid_usage
*usage
, __s32 value
, struct pt_regs
*regs
)
795 hid_dump_input(usage
, value
);
796 if (hid
->claimed
& HID_CLAIMED_INPUT
)
797 hidinput_hid_event(hid
, field
, usage
, value
, regs
);
798 if (hid
->claimed
& HID_CLAIMED_HIDDEV
)
799 hiddev_hid_event(hid
, field
, usage
, value
, regs
);
803 * Analyse a received field, and fetch the data from it. The field
804 * content is stored for next report processing (we do differential
805 * reporting to the layer).
808 static void hid_input_field(struct hid_device
*hid
, struct hid_field
*field
, __u8
*data
, struct pt_regs
*regs
)
811 unsigned count
= field
->report_count
;
812 unsigned offset
= field
->report_offset
;
813 unsigned size
= field
->report_size
;
814 __s32 min
= field
->logical_minimum
;
815 __s32 max
= field
->logical_maximum
;
818 if (!(value
= kmalloc(sizeof(__s32
) * count
, GFP_ATOMIC
)))
821 for (n
= 0; n
< count
; n
++) {
823 value
[n
] = min
< 0 ? snto32(extract(data
, offset
+ n
* size
, size
), size
) :
824 extract(data
, offset
+ n
* size
, size
);
826 if (!(field
->flags
& HID_MAIN_ITEM_VARIABLE
) /* Ignore report if ErrorRollOver */
827 && value
[n
] >= min
&& value
[n
] <= max
828 && field
->usage
[value
[n
] - min
].hid
== HID_UP_KEYBOARD
+ 1)
832 for (n
= 0; n
< count
; n
++) {
834 if (HID_MAIN_ITEM_VARIABLE
& field
->flags
) {
835 hid_process_event(hid
, field
, &field
->usage
[n
], value
[n
], regs
);
839 if (field
->value
[n
] >= min
&& field
->value
[n
] <= max
840 && field
->usage
[field
->value
[n
] - min
].hid
841 && search(value
, field
->value
[n
], count
))
842 hid_process_event(hid
, field
, &field
->usage
[field
->value
[n
] - min
], 0, regs
);
844 if (value
[n
] >= min
&& value
[n
] <= max
845 && field
->usage
[value
[n
] - min
].hid
846 && search(field
->value
, value
[n
], count
))
847 hid_process_event(hid
, field
, &field
->usage
[value
[n
] - min
], 1, regs
);
850 memcpy(field
->value
, value
, count
* sizeof(__s32
));
855 static int hid_input_report(int type
, struct urb
*urb
, struct pt_regs
*regs
)
857 struct hid_device
*hid
= urb
->context
;
858 struct hid_report_enum
*report_enum
= hid
->report_enum
+ type
;
859 u8
*data
= urb
->transfer_buffer
;
860 int len
= urb
->actual_length
;
861 struct hid_report
*report
;
870 printk(KERN_DEBUG __FILE__
": report (size %u) (%snumbered)\n", len
, report_enum
->numbered
? "" : "un");
873 n
= 0; /* Normally report number is 0 */
874 if (report_enum
->numbered
) { /* Device uses numbered reports, data[0] is report number */
882 printk(KERN_DEBUG __FILE__
": report %d (size %u) = ", n
, len
);
883 for (i
= 0; i
< len
; i
++)
884 printk(" %02x", data
[i
]);
889 if (!(report
= report_enum
->report_id_hash
[n
])) {
890 dbg("undefined report_id %d received", n
);
894 size
= ((report
->size
- 1) >> 3) + 1;
897 dbg("report %d is too short, (%d < %d)", report
->id
, len
, size
);
899 if (hid
->claimed
& HID_CLAIMED_HIDDEV
)
900 hiddev_report_event(hid
, report
);
902 for (n
= 0; n
< report
->maxfield
; n
++)
903 hid_input_field(hid
, report
->field
[n
], data
, regs
);
905 if (hid
->claimed
& HID_CLAIMED_INPUT
)
906 hidinput_report_event(hid
, report
);
912 * Input interrupt completion handler.
915 static void hid_irq_in(struct urb
*urb
, struct pt_regs
*regs
)
917 struct hid_device
*hid
= urb
->context
;
920 switch (urb
->status
) {
921 case 0: /* success */
922 hid_input_report(HID_INPUT_REPORT
, urb
, regs
);
924 case -ECONNRESET
: /* unlink */
927 case -ESHUTDOWN
: /* unplug */
928 case -EILSEQ
: /* unplug timeout on uhci */
930 case -ETIMEDOUT
: /* NAK */
933 warn("input irq status %d received", urb
->status
);
936 status
= usb_submit_urb(urb
, SLAB_ATOMIC
);
938 err("can't resubmit intr, %s-%s/input%d, status %d",
939 hid
->dev
->bus
->bus_name
, hid
->dev
->devpath
,
944 * Output the field into the report.
947 static void hid_output_field(struct hid_field
*field
, __u8
*data
)
949 unsigned count
= field
->report_count
;
950 unsigned offset
= field
->report_offset
;
951 unsigned size
= field
->report_size
;
954 for (n
= 0; n
< count
; n
++) {
955 if (field
->logical_minimum
< 0) /* signed values */
956 implement(data
, offset
+ n
* size
, size
, s32ton(field
->value
[n
], size
));
957 else /* unsigned values */
958 implement(data
, offset
+ n
* size
, size
, field
->value
[n
]);
966 static void hid_output_report(struct hid_report
*report
, __u8
*data
)
971 *data
++ = report
->id
;
973 for (n
= 0; n
< report
->maxfield
; n
++)
974 hid_output_field(report
->field
[n
], data
);
978 * Set a field value. The report this field belongs to has to be
979 * created and transferred to the device, to set this value in the
983 int hid_set_field(struct hid_field
*field
, unsigned offset
, __s32 value
)
985 unsigned size
= field
->report_size
;
987 hid_dump_input(field
->usage
+ offset
, value
);
989 if (offset
>= field
->report_count
) {
990 dbg("offset (%d) exceeds report_count (%d)", offset
, field
->report_count
);
991 hid_dump_field(field
, 8);
994 if (field
->logical_minimum
< 0) {
995 if (value
!= snto32(s32ton(value
, size
), size
)) {
996 dbg("value %d is out of range", value
);
1000 field
->value
[offset
] = value
;
1005 * Find a report field with a specified HID usage.
1008 struct hid_field
*hid_find_field_by_usage(struct hid_device
*hid
, __u32 wanted_usage
, int type
)
1010 struct hid_report
*report
;
1013 list_for_each_entry(report
, &hid
->report_enum
[type
].report_list
, list
)
1014 for (i
= 0; i
< report
->maxfield
; i
++)
1015 if (report
->field
[i
]->logical
== wanted_usage
)
1016 return report
->field
[i
];
1020 static int hid_submit_out(struct hid_device
*hid
)
1022 struct hid_report
*report
;
1024 report
= hid
->out
[hid
->outtail
];
1026 hid_output_report(report
, hid
->outbuf
);
1027 hid
->urbout
->transfer_buffer_length
= ((report
->size
- 1) >> 3) + 1 + (report
->id
> 0);
1028 hid
->urbout
->dev
= hid
->dev
;
1030 dbg("submitting out urb");
1032 if (usb_submit_urb(hid
->urbout
, GFP_ATOMIC
)) {
1033 err("usb_submit_urb(out) failed");
1040 static int hid_submit_ctrl(struct hid_device
*hid
)
1042 struct hid_report
*report
;
1046 report
= hid
->ctrl
[hid
->ctrltail
].report
;
1047 dir
= hid
->ctrl
[hid
->ctrltail
].dir
;
1049 len
= ((report
->size
- 1) >> 3) + 1 + (report
->id
> 0);
1050 if (dir
== USB_DIR_OUT
) {
1051 hid_output_report(report
, hid
->ctrlbuf
);
1052 hid
->urbctrl
->pipe
= usb_sndctrlpipe(hid
->dev
, 0);
1053 hid
->urbctrl
->transfer_buffer_length
= len
;
1055 int maxpacket
, padlen
;
1057 hid
->urbctrl
->pipe
= usb_rcvctrlpipe(hid
->dev
, 0);
1058 maxpacket
= usb_maxpacket(hid
->dev
, hid
->urbctrl
->pipe
, 0);
1059 if (maxpacket
> 0) {
1060 padlen
= (len
+ maxpacket
- 1) / maxpacket
;
1061 padlen
*= maxpacket
;
1062 if (padlen
> HID_BUFFER_SIZE
)
1063 padlen
= HID_BUFFER_SIZE
;
1066 hid
->urbctrl
->transfer_buffer_length
= padlen
;
1068 hid
->urbctrl
->dev
= hid
->dev
;
1070 hid
->cr
->bRequestType
= USB_TYPE_CLASS
| USB_RECIP_INTERFACE
| dir
;
1071 hid
->cr
->bRequest
= (dir
== USB_DIR_OUT
) ? HID_REQ_SET_REPORT
: HID_REQ_GET_REPORT
;
1072 hid
->cr
->wValue
= cpu_to_le16(((report
->type
+ 1) << 8) | report
->id
);
1073 hid
->cr
->wIndex
= cpu_to_le16(hid
->ifnum
);
1074 hid
->cr
->wLength
= cpu_to_le16(len
);
1076 dbg("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u",
1077 hid
->cr
->bRequest
== HID_REQ_SET_REPORT
? "Set_Report" : "Get_Report",
1078 hid
->cr
->wValue
, hid
->cr
->wIndex
, hid
->cr
->wLength
);
1080 if (usb_submit_urb(hid
->urbctrl
, GFP_ATOMIC
)) {
1081 err("usb_submit_urb(ctrl) failed");
1089 * Output interrupt completion handler.
1092 static void hid_irq_out(struct urb
*urb
, struct pt_regs
*regs
)
1094 struct hid_device
*hid
= urb
->context
;
1095 unsigned long flags
;
1098 switch (urb
->status
) {
1099 case 0: /* success */
1100 case -ESHUTDOWN
: /* unplug */
1101 case -EILSEQ
: /* unplug timeout on uhci */
1103 case -ECONNRESET
: /* unlink */
1106 default: /* error */
1107 warn("output irq status %d received", urb
->status
);
1110 spin_lock_irqsave(&hid
->outlock
, flags
);
1113 hid
->outtail
= hid
->outhead
;
1115 hid
->outtail
= (hid
->outtail
+ 1) & (HID_OUTPUT_FIFO_SIZE
- 1);
1117 if (hid
->outhead
!= hid
->outtail
) {
1118 if (hid_submit_out(hid
)) {
1119 clear_bit(HID_OUT_RUNNING
, &hid
->iofl
);;
1120 wake_up(&hid
->wait
);
1122 spin_unlock_irqrestore(&hid
->outlock
, flags
);
1126 clear_bit(HID_OUT_RUNNING
, &hid
->iofl
);
1127 spin_unlock_irqrestore(&hid
->outlock
, flags
);
1128 wake_up(&hid
->wait
);
1132 * Control pipe completion handler.
1135 static void hid_ctrl(struct urb
*urb
, struct pt_regs
*regs
)
1137 struct hid_device
*hid
= urb
->context
;
1138 unsigned long flags
;
1141 spin_lock_irqsave(&hid
->ctrllock
, flags
);
1143 switch (urb
->status
) {
1144 case 0: /* success */
1145 if (hid
->ctrl
[hid
->ctrltail
].dir
== USB_DIR_IN
)
1146 hid_input_report(hid
->ctrl
[hid
->ctrltail
].report
->type
, urb
, regs
);
1147 case -ESHUTDOWN
: /* unplug */
1148 case -EILSEQ
: /* unplug timectrl on uhci */
1150 case -ECONNRESET
: /* unlink */
1152 case -EPIPE
: /* report not available */
1154 default: /* error */
1155 warn("ctrl urb status %d received", urb
->status
);
1159 hid
->ctrltail
= hid
->ctrlhead
;
1161 hid
->ctrltail
= (hid
->ctrltail
+ 1) & (HID_CONTROL_FIFO_SIZE
- 1);
1163 if (hid
->ctrlhead
!= hid
->ctrltail
) {
1164 if (hid_submit_ctrl(hid
)) {
1165 clear_bit(HID_CTRL_RUNNING
, &hid
->iofl
);
1166 wake_up(&hid
->wait
);
1168 spin_unlock_irqrestore(&hid
->ctrllock
, flags
);
1172 clear_bit(HID_CTRL_RUNNING
, &hid
->iofl
);
1173 spin_unlock_irqrestore(&hid
->ctrllock
, flags
);
1174 wake_up(&hid
->wait
);
1177 void hid_submit_report(struct hid_device
*hid
, struct hid_report
*report
, unsigned char dir
)
1180 unsigned long flags
;
1182 if ((hid
->quirks
& HID_QUIRK_NOGET
) && dir
== USB_DIR_IN
)
1185 if (hid
->urbout
&& dir
== USB_DIR_OUT
&& report
->type
== HID_OUTPUT_REPORT
) {
1187 spin_lock_irqsave(&hid
->outlock
, flags
);
1189 if ((head
= (hid
->outhead
+ 1) & (HID_OUTPUT_FIFO_SIZE
- 1)) == hid
->outtail
) {
1190 spin_unlock_irqrestore(&hid
->outlock
, flags
);
1191 warn("output queue full");
1195 hid
->out
[hid
->outhead
] = report
;
1196 hid
->outhead
= head
;
1198 if (!test_and_set_bit(HID_OUT_RUNNING
, &hid
->iofl
))
1199 if (hid_submit_out(hid
))
1200 clear_bit(HID_OUT_RUNNING
, &hid
->iofl
);
1202 spin_unlock_irqrestore(&hid
->outlock
, flags
);
1206 spin_lock_irqsave(&hid
->ctrllock
, flags
);
1208 if ((head
= (hid
->ctrlhead
+ 1) & (HID_CONTROL_FIFO_SIZE
- 1)) == hid
->ctrltail
) {
1209 spin_unlock_irqrestore(&hid
->ctrllock
, flags
);
1210 warn("control queue full");
1214 hid
->ctrl
[hid
->ctrlhead
].report
= report
;
1215 hid
->ctrl
[hid
->ctrlhead
].dir
= dir
;
1216 hid
->ctrlhead
= head
;
1218 if (!test_and_set_bit(HID_CTRL_RUNNING
, &hid
->iofl
))
1219 if (hid_submit_ctrl(hid
))
1220 clear_bit(HID_CTRL_RUNNING
, &hid
->iofl
);
1222 spin_unlock_irqrestore(&hid
->ctrllock
, flags
);
1225 int hid_wait_io(struct hid_device
*hid
)
1227 if (!wait_event_timeout(hid
->wait
, (!test_bit(HID_CTRL_RUNNING
, &hid
->iofl
) &&
1228 !test_bit(HID_OUT_RUNNING
, &hid
->iofl
)),
1230 dbg("timeout waiting for ctrl or out queue to clear");
1237 static int hid_get_class_descriptor(struct usb_device
*dev
, int ifnum
,
1238 unsigned char type
, void *buf
, int size
)
1240 int result
, retries
= 4;
1242 memset(buf
,0,size
); // Make sure we parse really received data
1245 result
= usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0),
1246 USB_REQ_GET_DESCRIPTOR
, USB_RECIP_INTERFACE
| USB_DIR_IN
,
1247 (type
<< 8), ifnum
, buf
, size
, USB_CTRL_GET_TIMEOUT
);
1249 } while (result
< size
&& retries
);
1253 int hid_open(struct hid_device
*hid
)
1258 hid
->urbin
->dev
= hid
->dev
;
1260 if (usb_submit_urb(hid
->urbin
, GFP_KERNEL
))
1266 void hid_close(struct hid_device
*hid
)
1269 usb_kill_urb(hid
->urbin
);
1273 * Initialize all reports
1276 void hid_init_reports(struct hid_device
*hid
)
1278 struct hid_report
*report
;
1281 list_for_each_entry(report
, &hid
->report_enum
[HID_INPUT_REPORT
].report_list
, list
) {
1282 int size
= ((report
->size
- 1) >> 3) + 1 + hid
->report_enum
[HID_INPUT_REPORT
].numbered
;
1283 if (size
> HID_BUFFER_SIZE
) size
= HID_BUFFER_SIZE
;
1284 if (size
> hid
->urbin
->transfer_buffer_length
)
1285 hid
->urbin
->transfer_buffer_length
= size
;
1286 hid_submit_report(hid
, report
, USB_DIR_IN
);
1289 list_for_each_entry(report
, &hid
->report_enum
[HID_FEATURE_REPORT
].report_list
, list
)
1290 hid_submit_report(hid
, report
, USB_DIR_IN
);
1293 ret
= hid_wait_io(hid
);
1296 if (test_bit(HID_CTRL_RUNNING
, &hid
->iofl
))
1297 usb_kill_urb(hid
->urbctrl
);
1298 if (test_bit(HID_OUT_RUNNING
, &hid
->iofl
))
1299 usb_kill_urb(hid
->urbout
);
1300 ret
= hid_wait_io(hid
);
1304 warn("timeout initializing reports\n");
1306 usb_control_msg(hid
->dev
, usb_sndctrlpipe(hid
->dev
, 0),
1307 HID_REQ_SET_IDLE
, USB_TYPE_CLASS
| USB_RECIP_INTERFACE
, 0,
1308 hid
->ifnum
, NULL
, 0, USB_CTRL_SET_TIMEOUT
);
1311 #define USB_VENDOR_ID_WACOM 0x056a
1312 #define USB_DEVICE_ID_WACOM_PENPARTNER 0x0000
1313 #define USB_DEVICE_ID_WACOM_GRAPHIRE 0x0010
1314 #define USB_DEVICE_ID_WACOM_INTUOS 0x0020
1315 #define USB_DEVICE_ID_WACOM_PL 0x0030
1316 #define USB_DEVICE_ID_WACOM_INTUOS2 0x0040
1317 #define USB_DEVICE_ID_WACOM_VOLITO 0x0060
1318 #define USB_DEVICE_ID_WACOM_PTU 0x0003
1320 #define USB_VENDOR_ID_KBGEAR 0x084e
1321 #define USB_DEVICE_ID_KBGEAR_JAMSTUDIO 0x1001
1323 #define USB_VENDOR_ID_AIPTEK 0x08ca
1324 #define USB_DEVICE_ID_AIPTEK_01 0x0001
1325 #define USB_DEVICE_ID_AIPTEK_10 0x0010
1326 #define USB_DEVICE_ID_AIPTEK_20 0x0020
1327 #define USB_DEVICE_ID_AIPTEK_21 0x0021
1328 #define USB_DEVICE_ID_AIPTEK_22 0x0022
1329 #define USB_DEVICE_ID_AIPTEK_23 0x0023
1330 #define USB_DEVICE_ID_AIPTEK_24 0x0024
1332 #define USB_VENDOR_ID_GRIFFIN 0x077d
1333 #define USB_DEVICE_ID_POWERMATE 0x0410
1334 #define USB_DEVICE_ID_SOUNDKNOB 0x04AA
1336 #define USB_VENDOR_ID_ATEN 0x0557
1337 #define USB_DEVICE_ID_ATEN_UC100KM 0x2004
1338 #define USB_DEVICE_ID_ATEN_CS124U 0x2202
1339 #define USB_DEVICE_ID_ATEN_2PORTKVM 0x2204
1340 #define USB_DEVICE_ID_ATEN_4PORTKVM 0x2205
1341 #define USB_DEVICE_ID_ATEN_4PORTKVMC 0x2208
1343 #define USB_VENDOR_ID_TOPMAX 0x0663
1344 #define USB_DEVICE_ID_TOPMAX_COBRAPAD 0x0103
1346 #define USB_VENDOR_ID_HAPP 0x078b
1347 #define USB_DEVICE_ID_UGCI_DRIVING 0x0010
1348 #define USB_DEVICE_ID_UGCI_FLYING 0x0020
1349 #define USB_DEVICE_ID_UGCI_FIGHTING 0x0030
1351 #define USB_VENDOR_ID_MGE 0x0463
1352 #define USB_DEVICE_ID_MGE_UPS 0xffff
1353 #define USB_DEVICE_ID_MGE_UPS1 0x0001
1355 #define USB_VENDOR_ID_ONTRAK 0x0a07
1356 #define USB_DEVICE_ID_ONTRAK_ADU100 0x0064
1358 #define USB_VENDOR_ID_TANGTOP 0x0d3d
1359 #define USB_DEVICE_ID_TANGTOP_USBPS2 0x0001
1361 #define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
1362 #define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
1364 #define USB_VENDOR_ID_A4TECH 0x09da
1365 #define USB_DEVICE_ID_A4TECH_WCP32PU 0x0006
1367 #define USB_VENDOR_ID_CYPRESS 0x04b4
1368 #define USB_DEVICE_ID_CYPRESS_MOUSE 0x0001
1369 #define USB_DEVICE_ID_CYPRESS_HIDCOM 0x5500
1371 #define USB_VENDOR_ID_BERKSHIRE 0x0c98
1372 #define USB_DEVICE_ID_BERKSHIRE_PCWD 0x1140
1374 #define USB_VENDOR_ID_ALPS 0x0433
1375 #define USB_DEVICE_ID_IBM_GAMEPAD 0x1101
1377 #define USB_VENDOR_ID_SAITEK 0x06a3
1378 #define USB_DEVICE_ID_SAITEK_RUMBLEPAD 0xff17
1380 #define USB_VENDOR_ID_NEC 0x073e
1381 #define USB_DEVICE_ID_NEC_USB_GAME_PAD 0x0301
1383 #define USB_VENDOR_ID_CHIC 0x05fe
1384 #define USB_DEVICE_ID_CHIC_GAMEPAD 0x0014
1386 #define USB_VENDOR_ID_GLAB 0x06c2
1387 #define USB_DEVICE_ID_4_PHIDGETSERVO_30 0x0038
1388 #define USB_DEVICE_ID_1_PHIDGETSERVO_30 0x0039
1389 #define USB_DEVICE_ID_8_8_8_IF_KIT 0x0045
1390 #define USB_DEVICE_ID_0_0_4_IF_KIT 0x0040
1391 #define USB_DEVICE_ID_0_8_8_IF_KIT 0x0053
1393 #define USB_VENDOR_ID_WISEGROUP 0x0925
1394 #define USB_DEVICE_ID_1_PHIDGETSERVO_20 0x8101
1395 #define USB_DEVICE_ID_4_PHIDGETSERVO_20 0x8104
1397 #define USB_VENDOR_ID_CODEMERCS 0x07c0
1398 #define USB_DEVICE_ID_CODEMERCS_IOW40 0x1500
1399 #define USB_DEVICE_ID_CODEMERCS_IOW24 0x1501
1400 #define USB_DEVICE_ID_CODEMERCS_IOW48 0x1502
1401 #define USB_DEVICE_ID_CODEMERCS_IOW28 0x1503
1403 #define USB_VENDOR_ID_DELORME 0x1163
1404 #define USB_DEVICE_ID_DELORME_EARTHMATE 0x0100
1406 #define USB_VENDOR_ID_MCC 0x09db
1407 #define USB_DEVICE_ID_MCC_PMD1024LS 0x0076
1408 #define USB_DEVICE_ID_MCC_PMD1208LS 0x007a
1410 #define USB_VENDOR_ID_CHICONY 0x04f2
1411 #define USB_DEVICE_ID_CHICONY_USBHUB_KB 0x0100
1413 #define USB_VENDOR_ID_BTC 0x046e
1414 #define USB_DEVICE_ID_BTC_KEYBOARD 0x5303
1418 * Alphabetically sorted blacklist by quirk type.
1421 static struct hid_blacklist
{
1425 } hid_blacklist
[] = {
1427 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_01
, HID_QUIRK_IGNORE
},
1428 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_10
, HID_QUIRK_IGNORE
},
1429 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_20
, HID_QUIRK_IGNORE
},
1430 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_21
, HID_QUIRK_IGNORE
},
1431 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_22
, HID_QUIRK_IGNORE
},
1432 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_23
, HID_QUIRK_IGNORE
},
1433 { USB_VENDOR_ID_AIPTEK
, USB_DEVICE_ID_AIPTEK_24
, HID_QUIRK_IGNORE
},
1434 { USB_VENDOR_ID_BERKSHIRE
, USB_DEVICE_ID_BERKSHIRE_PCWD
, HID_QUIRK_IGNORE
},
1435 { USB_VENDOR_ID_CODEMERCS
, USB_DEVICE_ID_CODEMERCS_IOW40
, HID_QUIRK_IGNORE
},
1436 { USB_VENDOR_ID_CODEMERCS
, USB_DEVICE_ID_CODEMERCS_IOW24
, HID_QUIRK_IGNORE
},
1437 { USB_VENDOR_ID_CODEMERCS
, USB_DEVICE_ID_CODEMERCS_IOW48
, HID_QUIRK_IGNORE
},
1438 { USB_VENDOR_ID_CODEMERCS
, USB_DEVICE_ID_CODEMERCS_IOW28
, HID_QUIRK_IGNORE
},
1439 { USB_VENDOR_ID_CYPRESS
, USB_DEVICE_ID_CYPRESS_HIDCOM
, HID_QUIRK_IGNORE
},
1440 { USB_VENDOR_ID_DELORME
, USB_DEVICE_ID_DELORME_EARTHMATE
, HID_QUIRK_IGNORE
},
1441 { USB_VENDOR_ID_ESSENTIAL_REALITY
, USB_DEVICE_ID_ESSENTIAL_REALITY_P5
, HID_QUIRK_IGNORE
},
1442 { USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_4_PHIDGETSERVO_30
, HID_QUIRK_IGNORE
},
1443 { USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_1_PHIDGETSERVO_30
, HID_QUIRK_IGNORE
},
1444 { USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_8_8_8_IF_KIT
, HID_QUIRK_IGNORE
},
1445 { USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_0_0_4_IF_KIT
, HID_QUIRK_IGNORE
},
1446 { USB_VENDOR_ID_GLAB
, USB_DEVICE_ID_0_8_8_IF_KIT
, HID_QUIRK_IGNORE
},
1447 { USB_VENDOR_ID_GRIFFIN
, USB_DEVICE_ID_POWERMATE
, HID_QUIRK_IGNORE
},
1448 { USB_VENDOR_ID_GRIFFIN
, USB_DEVICE_ID_SOUNDKNOB
, HID_QUIRK_IGNORE
},
1449 { USB_VENDOR_ID_KBGEAR
, USB_DEVICE_ID_KBGEAR_JAMSTUDIO
, HID_QUIRK_IGNORE
},
1450 { USB_VENDOR_ID_MCC
, USB_DEVICE_ID_MCC_PMD1024LS
, HID_QUIRK_IGNORE
},
1451 { USB_VENDOR_ID_MCC
, USB_DEVICE_ID_MCC_PMD1208LS
, HID_QUIRK_IGNORE
},
1452 { USB_VENDOR_ID_MGE
, USB_DEVICE_ID_MGE_UPS
, HID_QUIRK_IGNORE
},
1453 { USB_VENDOR_ID_MGE
, USB_DEVICE_ID_MGE_UPS1
, HID_QUIRK_IGNORE
},
1454 { USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
, HID_QUIRK_IGNORE
},
1455 { USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 100, HID_QUIRK_IGNORE
},
1456 { USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 200, HID_QUIRK_IGNORE
},
1457 { USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 300, HID_QUIRK_IGNORE
},
1458 { USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 400, HID_QUIRK_IGNORE
},
1459 { USB_VENDOR_ID_ONTRAK
, USB_DEVICE_ID_ONTRAK_ADU100
+ 500, HID_QUIRK_IGNORE
},
1460 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_PENPARTNER
, HID_QUIRK_IGNORE
},
1461 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_GRAPHIRE
, HID_QUIRK_IGNORE
},
1462 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_GRAPHIRE
+ 1, HID_QUIRK_IGNORE
},
1463 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_GRAPHIRE
+ 2, HID_QUIRK_IGNORE
},
1464 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_GRAPHIRE
+ 3, HID_QUIRK_IGNORE
},
1465 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_GRAPHIRE
+ 4, HID_QUIRK_IGNORE
},
1466 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_INTUOS
, HID_QUIRK_IGNORE
},
1467 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_INTUOS
+ 1, HID_QUIRK_IGNORE
},
1468 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_INTUOS
+ 2, HID_QUIRK_IGNORE
},
1469 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_INTUOS
+ 3, HID_QUIRK_IGNORE
},
1470 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_INTUOS
+ 4, HID_QUIRK_IGNORE
},
1471 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_PL
, HID_QUIRK_IGNORE
},
1472 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_PL
+ 1, HID_QUIRK_IGNORE
},
1473 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_PL
+ 2, HID_QUIRK_IGNORE
},
1474 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_PL
+ 3, HID_QUIRK_IGNORE
},
1475 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_PL
+ 4, HID_QUIRK_IGNORE
},
1476 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_PL
+ 5, HID_QUIRK_IGNORE
},
1477 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_INTUOS2
+ 1, HID_QUIRK_IGNORE
},
1478 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_INTUOS2
+ 2, HID_QUIRK_IGNORE
},
1479 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_INTUOS2
+ 3, HID_QUIRK_IGNORE
},
1480 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_INTUOS2
+ 4, HID_QUIRK_IGNORE
},
1481 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_INTUOS2
+ 5, HID_QUIRK_IGNORE
},
1482 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_INTUOS2
+ 7, HID_QUIRK_IGNORE
},
1483 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_VOLITO
, HID_QUIRK_IGNORE
},
1484 { USB_VENDOR_ID_WACOM
, USB_DEVICE_ID_WACOM_PTU
, HID_QUIRK_IGNORE
},
1485 { USB_VENDOR_ID_WISEGROUP
, USB_DEVICE_ID_4_PHIDGETSERVO_20
, HID_QUIRK_IGNORE
},
1486 { USB_VENDOR_ID_WISEGROUP
, USB_DEVICE_ID_1_PHIDGETSERVO_20
, HID_QUIRK_IGNORE
},
1488 { USB_VENDOR_ID_ATEN
, USB_DEVICE_ID_ATEN_UC100KM
, HID_QUIRK_NOGET
},
1489 { USB_VENDOR_ID_ATEN
, USB_DEVICE_ID_ATEN_CS124U
, HID_QUIRK_NOGET
},
1490 { USB_VENDOR_ID_ATEN
, USB_DEVICE_ID_ATEN_2PORTKVM
, HID_QUIRK_NOGET
},
1491 { USB_VENDOR_ID_ATEN
, USB_DEVICE_ID_ATEN_4PORTKVM
, HID_QUIRK_NOGET
},
1492 { USB_VENDOR_ID_ATEN
, USB_DEVICE_ID_ATEN_4PORTKVMC
, HID_QUIRK_NOGET
},
1493 { USB_VENDOR_ID_BTC
, USB_DEVICE_ID_BTC_KEYBOARD
, HID_QUIRK_NOGET
},
1494 { USB_VENDOR_ID_CHICONY
, USB_DEVICE_ID_CHICONY_USBHUB_KB
, HID_QUIRK_NOGET
},
1495 { USB_VENDOR_ID_TANGTOP
, USB_DEVICE_ID_TANGTOP_USBPS2
, HID_QUIRK_NOGET
},
1497 { USB_VENDOR_ID_A4TECH
, USB_DEVICE_ID_A4TECH_WCP32PU
, HID_QUIRK_2WHEEL_MOUSE_HACK_7
},
1498 { USB_VENDOR_ID_CYPRESS
, USB_DEVICE_ID_CYPRESS_MOUSE
, HID_QUIRK_2WHEEL_MOUSE_HACK_5
},
1500 { USB_VENDOR_ID_ALPS
, USB_DEVICE_ID_IBM_GAMEPAD
, HID_QUIRK_BADPAD
},
1501 { USB_VENDOR_ID_CHIC
, USB_DEVICE_ID_CHIC_GAMEPAD
, HID_QUIRK_BADPAD
},
1502 { USB_VENDOR_ID_HAPP
, USB_DEVICE_ID_UGCI_DRIVING
, HID_QUIRK_BADPAD
| HID_QUIRK_MULTI_INPUT
},
1503 { USB_VENDOR_ID_HAPP
, USB_DEVICE_ID_UGCI_FLYING
, HID_QUIRK_BADPAD
| HID_QUIRK_MULTI_INPUT
},
1504 { USB_VENDOR_ID_HAPP
, USB_DEVICE_ID_UGCI_FIGHTING
, HID_QUIRK_BADPAD
| HID_QUIRK_MULTI_INPUT
},
1505 { USB_VENDOR_ID_NEC
, USB_DEVICE_ID_NEC_USB_GAME_PAD
, HID_QUIRK_BADPAD
},
1506 { USB_VENDOR_ID_SAITEK
, USB_DEVICE_ID_SAITEK_RUMBLEPAD
, HID_QUIRK_BADPAD
},
1507 { USB_VENDOR_ID_TOPMAX
, USB_DEVICE_ID_TOPMAX_COBRAPAD
, HID_QUIRK_BADPAD
},
1512 static int hid_alloc_buffers(struct usb_device
*dev
, struct hid_device
*hid
)
1514 if (!(hid
->inbuf
= usb_buffer_alloc(dev
, HID_BUFFER_SIZE
, SLAB_ATOMIC
, &hid
->inbuf_dma
)))
1516 if (!(hid
->outbuf
= usb_buffer_alloc(dev
, HID_BUFFER_SIZE
, SLAB_ATOMIC
, &hid
->outbuf_dma
)))
1518 if (!(hid
->cr
= usb_buffer_alloc(dev
, sizeof(*(hid
->cr
)), SLAB_ATOMIC
, &hid
->cr_dma
)))
1520 if (!(hid
->ctrlbuf
= usb_buffer_alloc(dev
, HID_BUFFER_SIZE
, SLAB_ATOMIC
, &hid
->ctrlbuf_dma
)))
1526 static void hid_free_buffers(struct usb_device
*dev
, struct hid_device
*hid
)
1529 usb_buffer_free(dev
, HID_BUFFER_SIZE
, hid
->inbuf
, hid
->inbuf_dma
);
1531 usb_buffer_free(dev
, HID_BUFFER_SIZE
, hid
->outbuf
, hid
->outbuf_dma
);
1533 usb_buffer_free(dev
, sizeof(*(hid
->cr
)), hid
->cr
, hid
->cr_dma
);
1535 usb_buffer_free(dev
, HID_BUFFER_SIZE
, hid
->ctrlbuf
, hid
->ctrlbuf_dma
);
1538 static struct hid_device
*usb_hid_configure(struct usb_interface
*intf
)
1540 struct usb_host_interface
*interface
= intf
->cur_altsetting
;
1541 struct usb_device
*dev
= interface_to_usbdev (intf
);
1542 struct hid_descriptor
*hdesc
;
1543 struct hid_device
*hid
;
1544 unsigned quirks
= 0, rsize
= 0;
1548 for (n
= 0; hid_blacklist
[n
].idVendor
; n
++)
1549 if ((hid_blacklist
[n
].idVendor
== le16_to_cpu(dev
->descriptor
.idVendor
)) &&
1550 (hid_blacklist
[n
].idProduct
== le16_to_cpu(dev
->descriptor
.idProduct
)))
1551 quirks
= hid_blacklist
[n
].quirks
;
1553 if (quirks
& HID_QUIRK_IGNORE
)
1556 if (usb_get_extra_descriptor(interface
, HID_DT_HID
, &hdesc
) && ((!interface
->desc
.bNumEndpoints
) ||
1557 usb_get_extra_descriptor(&interface
->endpoint
[0], HID_DT_HID
, &hdesc
))) {
1558 dbg("class descriptor not present\n");
1562 for (n
= 0; n
< hdesc
->bNumDescriptors
; n
++)
1563 if (hdesc
->desc
[n
].bDescriptorType
== HID_DT_REPORT
)
1564 rsize
= le16_to_cpu(hdesc
->desc
[n
].wDescriptorLength
);
1566 if (!rsize
|| rsize
> HID_MAX_DESCRIPTOR_SIZE
) {
1567 dbg("weird size of report descriptor (%u)", rsize
);
1571 if (!(rdesc
= kmalloc(rsize
, GFP_KERNEL
))) {
1572 dbg("couldn't allocate rdesc memory");
1576 if ((n
= hid_get_class_descriptor(dev
, interface
->desc
.bInterfaceNumber
, HID_DT_REPORT
, rdesc
, rsize
)) < 0) {
1577 dbg("reading report descriptor failed");
1583 printk(KERN_DEBUG __FILE__
": report descriptor (size %u, read %d) = ", rsize
, n
);
1584 for (n
= 0; n
< rsize
; n
++)
1585 printk(" %02x", (unsigned char) rdesc
[n
]);
1589 if (!(hid
= hid_parse_report(rdesc
, n
))) {
1590 dbg("parsing report descriptor failed");
1596 hid
->quirks
= quirks
;
1598 if (hid_alloc_buffers(dev
, hid
)) {
1599 hid_free_buffers(dev
, hid
);
1603 for (n
= 0; n
< interface
->desc
.bNumEndpoints
; n
++) {
1605 struct usb_endpoint_descriptor
*endpoint
;
1609 endpoint
= &interface
->endpoint
[n
].desc
;
1610 if ((endpoint
->bmAttributes
& 3) != 3) /* Not an interrupt endpoint */
1613 /* handle potential highspeed HID correctly */
1614 interval
= endpoint
->bInterval
;
1615 if (dev
->speed
== USB_SPEED_HIGH
)
1616 interval
= 1 << (interval
- 1);
1618 /* Change the polling interval of mice. */
1619 if (hid
->collection
->usage
== HID_GD_MOUSE
&& hid_mousepoll_interval
> 0)
1620 interval
= hid_mousepoll_interval
;
1622 if (endpoint
->bEndpointAddress
& USB_DIR_IN
) {
1625 if (!(hid
->urbin
= usb_alloc_urb(0, GFP_KERNEL
)))
1627 pipe
= usb_rcvintpipe(dev
, endpoint
->bEndpointAddress
);
1628 usb_fill_int_urb(hid
->urbin
, dev
, pipe
, hid
->inbuf
, 0,
1629 hid_irq_in
, hid
, interval
);
1630 hid
->urbin
->transfer_dma
= hid
->inbuf_dma
;
1631 hid
->urbin
->transfer_flags
|=(URB_NO_TRANSFER_DMA_MAP
| URB_ASYNC_UNLINK
);
1635 if (!(hid
->urbout
= usb_alloc_urb(0, GFP_KERNEL
)))
1637 pipe
= usb_sndintpipe(dev
, endpoint
->bEndpointAddress
);
1638 usb_fill_int_urb(hid
->urbout
, dev
, pipe
, hid
->outbuf
, 0,
1639 hid_irq_out
, hid
, interval
);
1640 hid
->urbout
->transfer_dma
= hid
->outbuf_dma
;
1641 hid
->urbout
->transfer_flags
|= (URB_NO_TRANSFER_DMA_MAP
| URB_ASYNC_UNLINK
);
1646 err("couldn't find an input interrupt endpoint");
1650 init_waitqueue_head(&hid
->wait
);
1652 spin_lock_init(&hid
->outlock
);
1653 spin_lock_init(&hid
->ctrllock
);
1655 hid
->version
= le16_to_cpu(hdesc
->bcdHID
);
1656 hid
->country
= hdesc
->bCountryCode
;
1659 hid
->ifnum
= interface
->desc
.bInterfaceNumber
;
1663 if (!(buf
= kmalloc(64, GFP_KERNEL
)))
1666 if (dev
->manufacturer
) {
1667 strcat(hid
->name
, dev
->manufacturer
);
1669 snprintf(hid
->name
, 64, "%s %s", hid
->name
, dev
->product
);
1670 } else if (dev
->product
) {
1671 snprintf(hid
->name
, 128, "%s", dev
->product
);
1673 snprintf(hid
->name
, 128, "%04x:%04x",
1674 le16_to_cpu(dev
->descriptor
.idVendor
),
1675 le16_to_cpu(dev
->descriptor
.idProduct
));
1677 usb_make_path(dev
, buf
, 64);
1678 snprintf(hid
->phys
, 64, "%s/input%d", buf
,
1679 intf
->altsetting
[0].desc
.bInterfaceNumber
);
1681 if (usb_string(dev
, dev
->descriptor
.iSerialNumber
, hid
->uniq
, 64) <= 0)
1686 hid
->urbctrl
= usb_alloc_urb(0, GFP_KERNEL
);
1689 usb_fill_control_urb(hid
->urbctrl
, dev
, 0, (void *) hid
->cr
,
1690 hid
->ctrlbuf
, 1, hid_ctrl
, hid
);
1691 hid
->urbctrl
->setup_dma
= hid
->cr_dma
;
1692 hid
->urbctrl
->transfer_dma
= hid
->ctrlbuf_dma
;
1693 hid
->urbctrl
->transfer_flags
|= (URB_NO_TRANSFER_DMA_MAP
| URB_NO_SETUP_DMA_MAP
| URB_ASYNC_UNLINK
);
1700 usb_free_urb(hid
->urbin
);
1702 usb_free_urb(hid
->urbout
);
1704 usb_free_urb(hid
->urbctrl
);
1705 hid_free_buffers(dev
, hid
);
1706 hid_free_device(hid
);
1711 static void hid_disconnect(struct usb_interface
*intf
)
1713 struct hid_device
*hid
= usb_get_intfdata (intf
);
1718 usb_set_intfdata(intf
, NULL
);
1719 usb_kill_urb(hid
->urbin
);
1720 usb_kill_urb(hid
->urbout
);
1721 usb_kill_urb(hid
->urbctrl
);
1723 if (hid
->claimed
& HID_CLAIMED_INPUT
)
1724 hidinput_disconnect(hid
);
1725 if (hid
->claimed
& HID_CLAIMED_HIDDEV
)
1726 hiddev_disconnect(hid
);
1728 usb_free_urb(hid
->urbin
);
1729 usb_free_urb(hid
->urbctrl
);
1731 usb_free_urb(hid
->urbout
);
1733 hid_free_buffers(hid
->dev
, hid
);
1734 hid_free_device(hid
);
1737 static int hid_probe(struct usb_interface
*intf
, const struct usb_device_id
*id
)
1739 struct hid_device
*hid
;
1744 dbg("HID probe called for ifnum %d",
1745 intf
->altsetting
->desc
.bInterfaceNumber
);
1747 if (!(hid
= usb_hid_configure(intf
)))
1750 hid_init_reports(hid
);
1751 hid_dump_device(hid
);
1753 if (!hidinput_connect(hid
))
1754 hid
->claimed
|= HID_CLAIMED_INPUT
;
1755 if (!hiddev_connect(hid
))
1756 hid
->claimed
|= HID_CLAIMED_HIDDEV
;
1758 usb_set_intfdata(intf
, hid
);
1760 if (!hid
->claimed
) {
1761 printk ("HID device not claimed by input or hiddev\n");
1762 hid_disconnect(intf
);
1768 if (hid
->claimed
& HID_CLAIMED_INPUT
)
1770 if (hid
->claimed
== (HID_CLAIMED_INPUT
| HID_CLAIMED_HIDDEV
))
1772 if (hid
->claimed
& HID_CLAIMED_HIDDEV
)
1773 printk("hiddev%d", hid
->minor
);
1776 for (i
= 0; i
< hid
->maxcollection
; i
++) {
1777 if (hid
->collection
[i
].type
== HID_COLLECTION_APPLICATION
&&
1778 (hid
->collection
[i
].usage
& HID_USAGE_PAGE
) == HID_UP_GENDESK
&&
1779 (hid
->collection
[i
].usage
& 0xffff) < ARRAY_SIZE(hid_types
)) {
1780 c
= hid_types
[hid
->collection
[i
].usage
& 0xffff];
1785 usb_make_path(interface_to_usbdev(intf
), path
, 63);
1787 printk(": USB HID v%x.%02x %s [%s] on %s\n",
1788 hid
->version
>> 8, hid
->version
& 0xff, c
, hid
->name
, path
);
1793 static int hid_suspend(struct usb_interface
*intf
, u32 state
)
1795 struct hid_device
*hid
= usb_get_intfdata (intf
);
1797 usb_kill_urb(hid
->urbin
);
1798 intf
->dev
.power
.power_state
= state
;
1799 dev_dbg(&intf
->dev
, "suspend\n");
1803 static int hid_resume(struct usb_interface
*intf
)
1805 struct hid_device
*hid
= usb_get_intfdata (intf
);
1808 intf
->dev
.power
.power_state
= PM_SUSPEND_ON
;
1810 status
= usb_submit_urb(hid
->urbin
, GFP_NOIO
);
1813 dev_dbg(&intf
->dev
, "resume status %d\n", status
);
1817 static struct usb_device_id hid_usb_ids
[] = {
1818 { .match_flags
= USB_DEVICE_ID_MATCH_INT_CLASS
,
1819 .bInterfaceClass
= USB_INTERFACE_CLASS_HID
},
1820 { } /* Terminating entry */
1823 MODULE_DEVICE_TABLE (usb
, hid_usb_ids
);
1825 static struct usb_driver hid_driver
= {
1826 .owner
= THIS_MODULE
,
1829 .disconnect
= hid_disconnect
,
1830 .suspend
= hid_suspend
,
1831 .resume
= hid_resume
,
1832 .id_table
= hid_usb_ids
,
1835 static int __init
hid_init(void)
1838 retval
= hiddev_init();
1840 goto hiddev_init_fail
;
1841 retval
= usb_register(&hid_driver
);
1843 goto usb_register_fail
;
1844 info(DRIVER_VERSION
":" DRIVER_DESC
);
1853 static void __exit
hid_exit(void)
1855 usb_deregister(&hid_driver
);
1859 module_init(hid_init
);
1860 module_exit(hid_exit
);
1862 MODULE_AUTHOR(DRIVER_AUTHOR
);
1863 MODULE_DESCRIPTION(DRIVER_DESC
);
1864 MODULE_LICENSE(DRIVER_LICENSE
);