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
7 * Copyright (c) 2006-2007 Jiri Kosina
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the Free
13 * Software Foundation; either version 2 of the License, or (at your option)
17 #include <linux/module.h>
18 #include <linux/slab.h>
19 #include <linux/init.h>
20 #include <linux/kernel.h>
21 #include <linux/list.h>
23 #include <linux/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>
30 #include <linux/usb.h>
32 #include <linux/hid.h>
33 #include <linux/hiddev.h>
34 #include <linux/hid-debug.h>
41 #define DRIVER_VERSION "v2.6"
42 #define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik, Jiri Kosina"
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");
56 /* Quirks specified at module load time */
57 static char *quirks_param
[MAX_USBHID_BOOT_QUIRKS
] = { [ 0 ... (MAX_USBHID_BOOT_QUIRKS
- 1) ] = NULL
};
58 module_param_array_named(quirks
, quirks_param
, charp
, NULL
, 0444);
59 MODULE_PARM_DESC(quirks
, "Add/modify USB HID quirks by specifying "
60 " quirks=vendorID:productID:quirks"
61 " where vendorID, productID, and quirks are all in"
63 static char *rdesc_quirks_param
[MAX_USBHID_BOOT_QUIRKS
] = { [ 0 ... (MAX_USBHID_BOOT_QUIRKS
- 1) ] = NULL
};
64 module_param_array_named(rdesc_quirks
, rdesc_quirks_param
, charp
, NULL
, 0444);
65 MODULE_PARM_DESC(rdesc_quirks
, "Add/modify report descriptor quirks by specifying "
66 " rdesc_quirks=vendorID:productID:rdesc_quirks"
67 " where vendorID, productID, and rdesc_quirks are all in"
70 * Input submission and I/O error handler.
73 static void hid_io_error(struct hid_device
*hid
);
75 /* Start up the input URB */
76 static int hid_start_in(struct hid_device
*hid
)
80 struct usbhid_device
*usbhid
= hid
->driver_data
;
82 spin_lock_irqsave(&usbhid
->inlock
, flags
);
83 if (hid
->open
> 0 && !test_bit(HID_SUSPENDED
, &usbhid
->iofl
) &&
84 !test_and_set_bit(HID_IN_RUNNING
, &usbhid
->iofl
)) {
85 rc
= usb_submit_urb(usbhid
->urbin
, GFP_ATOMIC
);
87 clear_bit(HID_IN_RUNNING
, &usbhid
->iofl
);
89 spin_unlock_irqrestore(&usbhid
->inlock
, flags
);
93 /* I/O retry timer routine */
94 static void hid_retry_timeout(unsigned long _hid
)
96 struct hid_device
*hid
= (struct hid_device
*) _hid
;
97 struct usbhid_device
*usbhid
= hid
->driver_data
;
99 dev_dbg(&usbhid
->intf
->dev
, "retrying intr urb\n");
100 if (hid_start_in(hid
))
104 /* Workqueue routine to reset the device or clear a halt */
105 static void hid_reset(struct work_struct
*work
)
107 struct usbhid_device
*usbhid
=
108 container_of(work
, struct usbhid_device
, reset_work
);
109 struct hid_device
*hid
= usbhid
->hid
;
112 if (test_bit(HID_CLEAR_HALT
, &usbhid
->iofl
)) {
113 dev_dbg(&usbhid
->intf
->dev
, "clear halt\n");
114 rc
= usb_clear_halt(hid_to_usb_dev(hid
), usbhid
->urbin
->pipe
);
115 clear_bit(HID_CLEAR_HALT
, &usbhid
->iofl
);
119 else if (test_bit(HID_RESET_PENDING
, &usbhid
->iofl
)) {
120 dev_dbg(&usbhid
->intf
->dev
, "resetting device\n");
121 rc
= usb_lock_device_for_reset(hid_to_usb_dev(hid
), usbhid
->intf
);
123 rc
= usb_reset_device(hid_to_usb_dev(hid
));
124 usb_unlock_device(hid_to_usb_dev(hid
));
126 clear_bit(HID_RESET_PENDING
, &usbhid
->iofl
);
131 if (!test_bit(HID_IN_RUNNING
, &usbhid
->iofl
))
135 err_hid("can't reset device, %s-%s/input%d, status %d",
136 hid_to_usb_dev(hid
)->bus
->bus_name
,
137 hid_to_usb_dev(hid
)->devpath
,
147 /* Main I/O error handler */
148 static void hid_io_error(struct hid_device
*hid
)
151 struct usbhid_device
*usbhid
= hid
->driver_data
;
153 spin_lock_irqsave(&usbhid
->inlock
, flags
);
155 /* Stop when disconnected */
156 if (usb_get_intfdata(usbhid
->intf
) == NULL
)
159 /* If it has been a while since the last error, we'll assume
160 * this a brand new error and reset the retry timeout. */
161 if (time_after(jiffies
, usbhid
->stop_retry
+ HZ
/2))
162 usbhid
->retry_delay
= 0;
164 /* When an error occurs, retry at increasing intervals */
165 if (usbhid
->retry_delay
== 0) {
166 usbhid
->retry_delay
= 13; /* Then 26, 52, 104, 104, ... */
167 usbhid
->stop_retry
= jiffies
+ msecs_to_jiffies(1000);
168 } else if (usbhid
->retry_delay
< 100)
169 usbhid
->retry_delay
*= 2;
171 if (time_after(jiffies
, usbhid
->stop_retry
)) {
173 /* Retries failed, so do a port reset */
174 if (!test_and_set_bit(HID_RESET_PENDING
, &usbhid
->iofl
)) {
175 schedule_work(&usbhid
->reset_work
);
180 mod_timer(&usbhid
->io_retry
,
181 jiffies
+ msecs_to_jiffies(usbhid
->retry_delay
));
183 spin_unlock_irqrestore(&usbhid
->inlock
, flags
);
187 * Input interrupt completion handler.
190 static void hid_irq_in(struct urb
*urb
)
192 struct hid_device
*hid
= urb
->context
;
193 struct usbhid_device
*usbhid
= hid
->driver_data
;
196 switch (urb
->status
) {
197 case 0: /* success */
198 usbhid
->retry_delay
= 0;
199 hid_input_report(urb
->context
, HID_INPUT_REPORT
,
200 urb
->transfer_buffer
,
201 urb
->actual_length
, 1);
203 case -EPIPE
: /* stall */
204 clear_bit(HID_IN_RUNNING
, &usbhid
->iofl
);
205 set_bit(HID_CLEAR_HALT
, &usbhid
->iofl
);
206 schedule_work(&usbhid
->reset_work
);
208 case -ECONNRESET
: /* unlink */
210 case -ESHUTDOWN
: /* unplug */
211 clear_bit(HID_IN_RUNNING
, &usbhid
->iofl
);
213 case -EILSEQ
: /* protocol error or unplug */
214 case -EPROTO
: /* protocol error or unplug */
215 case -ETIME
: /* protocol error or unplug */
216 case -ETIMEDOUT
: /* Should never happen, but... */
217 clear_bit(HID_IN_RUNNING
, &usbhid
->iofl
);
221 warn("input irq status %d received", urb
->status
);
224 status
= usb_submit_urb(urb
, GFP_ATOMIC
);
226 clear_bit(HID_IN_RUNNING
, &usbhid
->iofl
);
227 if (status
!= -EPERM
) {
228 err_hid("can't resubmit intr, %s-%s/input%d, status %d",
229 hid_to_usb_dev(hid
)->bus
->bus_name
,
230 hid_to_usb_dev(hid
)->devpath
,
231 usbhid
->ifnum
, status
);
237 static int hid_submit_out(struct hid_device
*hid
)
239 struct hid_report
*report
;
240 struct usbhid_device
*usbhid
= hid
->driver_data
;
242 report
= usbhid
->out
[usbhid
->outtail
];
244 hid_output_report(report
, usbhid
->outbuf
);
245 usbhid
->urbout
->transfer_buffer_length
= ((report
->size
- 1) >> 3) + 1 + (report
->id
> 0);
246 usbhid
->urbout
->dev
= hid_to_usb_dev(hid
);
248 dbg_hid("submitting out urb\n");
250 if (usb_submit_urb(usbhid
->urbout
, GFP_ATOMIC
)) {
251 err_hid("usb_submit_urb(out) failed");
258 static int hid_submit_ctrl(struct hid_device
*hid
)
260 struct hid_report
*report
;
263 struct usbhid_device
*usbhid
= hid
->driver_data
;
265 report
= usbhid
->ctrl
[usbhid
->ctrltail
].report
;
266 dir
= usbhid
->ctrl
[usbhid
->ctrltail
].dir
;
268 len
= ((report
->size
- 1) >> 3) + 1 + (report
->id
> 0);
269 if (dir
== USB_DIR_OUT
) {
270 hid_output_report(report
, usbhid
->ctrlbuf
);
271 usbhid
->urbctrl
->pipe
= usb_sndctrlpipe(hid_to_usb_dev(hid
), 0);
272 usbhid
->urbctrl
->transfer_buffer_length
= len
;
274 int maxpacket
, padlen
;
276 usbhid
->urbctrl
->pipe
= usb_rcvctrlpipe(hid_to_usb_dev(hid
), 0);
277 maxpacket
= usb_maxpacket(hid_to_usb_dev(hid
), usbhid
->urbctrl
->pipe
, 0);
279 padlen
= (len
+ maxpacket
- 1) / maxpacket
;
281 if (padlen
> usbhid
->bufsize
)
282 padlen
= usbhid
->bufsize
;
285 usbhid
->urbctrl
->transfer_buffer_length
= padlen
;
287 usbhid
->urbctrl
->dev
= hid_to_usb_dev(hid
);
289 usbhid
->cr
->bRequestType
= USB_TYPE_CLASS
| USB_RECIP_INTERFACE
| dir
;
290 usbhid
->cr
->bRequest
= (dir
== USB_DIR_OUT
) ? HID_REQ_SET_REPORT
: HID_REQ_GET_REPORT
;
291 usbhid
->cr
->wValue
= cpu_to_le16(((report
->type
+ 1) << 8) | report
->id
);
292 usbhid
->cr
->wIndex
= cpu_to_le16(usbhid
->ifnum
);
293 usbhid
->cr
->wLength
= cpu_to_le16(len
);
295 dbg_hid("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u\n",
296 usbhid
->cr
->bRequest
== HID_REQ_SET_REPORT
? "Set_Report" : "Get_Report",
297 usbhid
->cr
->wValue
, usbhid
->cr
->wIndex
, usbhid
->cr
->wLength
);
299 if (usb_submit_urb(usbhid
->urbctrl
, GFP_ATOMIC
)) {
300 err_hid("usb_submit_urb(ctrl) failed");
308 * Output interrupt completion handler.
311 static void hid_irq_out(struct urb
*urb
)
313 struct hid_device
*hid
= urb
->context
;
314 struct usbhid_device
*usbhid
= hid
->driver_data
;
318 switch (urb
->status
) {
319 case 0: /* success */
321 case -ESHUTDOWN
: /* unplug */
323 case -EILSEQ
: /* protocol error or unplug */
324 case -EPROTO
: /* protocol error or unplug */
325 case -ECONNRESET
: /* unlink */
329 warn("output irq status %d received", urb
->status
);
332 spin_lock_irqsave(&usbhid
->outlock
, flags
);
335 usbhid
->outtail
= usbhid
->outhead
;
337 usbhid
->outtail
= (usbhid
->outtail
+ 1) & (HID_OUTPUT_FIFO_SIZE
- 1);
339 if (usbhid
->outhead
!= usbhid
->outtail
) {
340 if (hid_submit_out(hid
)) {
341 clear_bit(HID_OUT_RUNNING
, &usbhid
->iofl
);
344 spin_unlock_irqrestore(&usbhid
->outlock
, flags
);
348 clear_bit(HID_OUT_RUNNING
, &usbhid
->iofl
);
349 spin_unlock_irqrestore(&usbhid
->outlock
, flags
);
354 * Control pipe completion handler.
357 static void hid_ctrl(struct urb
*urb
)
359 struct hid_device
*hid
= urb
->context
;
360 struct usbhid_device
*usbhid
= hid
->driver_data
;
364 spin_lock_irqsave(&usbhid
->ctrllock
, flags
);
366 switch (urb
->status
) {
367 case 0: /* success */
368 if (usbhid
->ctrl
[usbhid
->ctrltail
].dir
== USB_DIR_IN
)
369 hid_input_report(urb
->context
, usbhid
->ctrl
[usbhid
->ctrltail
].report
->type
,
370 urb
->transfer_buffer
, urb
->actual_length
, 0);
372 case -ESHUTDOWN
: /* unplug */
374 case -EILSEQ
: /* protocol error or unplug */
375 case -EPROTO
: /* protocol error or unplug */
376 case -ECONNRESET
: /* unlink */
378 case -EPIPE
: /* report not available */
381 warn("ctrl urb status %d received", urb
->status
);
385 usbhid
->ctrltail
= usbhid
->ctrlhead
;
387 usbhid
->ctrltail
= (usbhid
->ctrltail
+ 1) & (HID_CONTROL_FIFO_SIZE
- 1);
389 if (usbhid
->ctrlhead
!= usbhid
->ctrltail
) {
390 if (hid_submit_ctrl(hid
)) {
391 clear_bit(HID_CTRL_RUNNING
, &usbhid
->iofl
);
394 spin_unlock_irqrestore(&usbhid
->ctrllock
, flags
);
398 clear_bit(HID_CTRL_RUNNING
, &usbhid
->iofl
);
399 spin_unlock_irqrestore(&usbhid
->ctrllock
, flags
);
403 void usbhid_submit_report(struct hid_device
*hid
, struct hid_report
*report
, unsigned char dir
)
407 struct usbhid_device
*usbhid
= hid
->driver_data
;
409 if ((hid
->quirks
& HID_QUIRK_NOGET
) && dir
== USB_DIR_IN
)
412 if (usbhid
->urbout
&& dir
== USB_DIR_OUT
&& report
->type
== HID_OUTPUT_REPORT
) {
414 spin_lock_irqsave(&usbhid
->outlock
, flags
);
416 if ((head
= (usbhid
->outhead
+ 1) & (HID_OUTPUT_FIFO_SIZE
- 1)) == usbhid
->outtail
) {
417 spin_unlock_irqrestore(&usbhid
->outlock
, flags
);
418 warn("output queue full");
422 usbhid
->out
[usbhid
->outhead
] = report
;
423 usbhid
->outhead
= head
;
425 if (!test_and_set_bit(HID_OUT_RUNNING
, &usbhid
->iofl
))
426 if (hid_submit_out(hid
))
427 clear_bit(HID_OUT_RUNNING
, &usbhid
->iofl
);
429 spin_unlock_irqrestore(&usbhid
->outlock
, flags
);
433 spin_lock_irqsave(&usbhid
->ctrllock
, flags
);
435 if ((head
= (usbhid
->ctrlhead
+ 1) & (HID_CONTROL_FIFO_SIZE
- 1)) == usbhid
->ctrltail
) {
436 spin_unlock_irqrestore(&usbhid
->ctrllock
, flags
);
437 warn("control queue full");
441 usbhid
->ctrl
[usbhid
->ctrlhead
].report
= report
;
442 usbhid
->ctrl
[usbhid
->ctrlhead
].dir
= dir
;
443 usbhid
->ctrlhead
= head
;
445 if (!test_and_set_bit(HID_CTRL_RUNNING
, &usbhid
->iofl
))
446 if (hid_submit_ctrl(hid
))
447 clear_bit(HID_CTRL_RUNNING
, &usbhid
->iofl
);
449 spin_unlock_irqrestore(&usbhid
->ctrllock
, flags
);
452 static int usb_hidinput_input_event(struct input_dev
*dev
, unsigned int type
, unsigned int code
, int value
)
454 struct hid_device
*hid
= input_get_drvdata(dev
);
455 struct hid_field
*field
;
459 return input_ff_event(dev
, type
, code
, value
);
464 if ((offset
= hidinput_find_field(hid
, type
, code
, &field
)) == -1) {
465 warn("event field not found");
469 hid_set_field(field
, offset
, value
);
470 usbhid_submit_report(hid
, field
->report
, USB_DIR_OUT
);
475 int usbhid_wait_io(struct hid_device
*hid
)
477 struct usbhid_device
*usbhid
= hid
->driver_data
;
479 if (!wait_event_timeout(hid
->wait
, (!test_bit(HID_CTRL_RUNNING
, &usbhid
->iofl
) &&
480 !test_bit(HID_OUT_RUNNING
, &usbhid
->iofl
)),
482 dbg_hid("timeout waiting for ctrl or out queue to clear\n");
489 static int hid_set_idle(struct usb_device
*dev
, int ifnum
, int report
, int idle
)
491 return usb_control_msg(dev
, usb_sndctrlpipe(dev
, 0),
492 HID_REQ_SET_IDLE
, USB_TYPE_CLASS
| USB_RECIP_INTERFACE
, (idle
<< 8) | report
,
493 ifnum
, NULL
, 0, USB_CTRL_SET_TIMEOUT
);
496 static int hid_get_class_descriptor(struct usb_device
*dev
, int ifnum
,
497 unsigned char type
, void *buf
, int size
)
499 int result
, retries
= 4;
501 memset(buf
, 0, size
);
504 result
= usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0),
505 USB_REQ_GET_DESCRIPTOR
, USB_RECIP_INTERFACE
| USB_DIR_IN
,
506 (type
<< 8), ifnum
, buf
, size
, USB_CTRL_GET_TIMEOUT
);
508 } while (result
< size
&& retries
);
512 int usbhid_open(struct hid_device
*hid
)
515 if (hid_start_in(hid
))
520 void usbhid_close(struct hid_device
*hid
)
522 struct usbhid_device
*usbhid
= hid
->driver_data
;
525 usb_kill_urb(usbhid
->urbin
);
529 * Initialize all reports
532 void usbhid_init_reports(struct hid_device
*hid
)
534 struct hid_report
*report
;
535 struct usbhid_device
*usbhid
= hid
->driver_data
;
538 list_for_each_entry(report
, &hid
->report_enum
[HID_INPUT_REPORT
].report_list
, list
)
539 usbhid_submit_report(hid
, report
, USB_DIR_IN
);
541 list_for_each_entry(report
, &hid
->report_enum
[HID_FEATURE_REPORT
].report_list
, list
)
542 usbhid_submit_report(hid
, report
, USB_DIR_IN
);
545 ret
= usbhid_wait_io(hid
);
548 if (test_bit(HID_CTRL_RUNNING
, &usbhid
->iofl
))
549 usb_kill_urb(usbhid
->urbctrl
);
550 if (test_bit(HID_OUT_RUNNING
, &usbhid
->iofl
))
551 usb_kill_urb(usbhid
->urbout
);
552 ret
= usbhid_wait_io(hid
);
556 warn("timeout initializing reports");
560 * Reset LEDs which BIOS might have left on. For now, just NumLock (0x01).
562 static int hid_find_field_early(struct hid_device
*hid
, unsigned int page
,
563 unsigned int hid_code
, struct hid_field
**pfield
)
565 struct hid_report
*report
;
566 struct hid_field
*field
;
567 struct hid_usage
*usage
;
570 list_for_each_entry(report
, &hid
->report_enum
[HID_OUTPUT_REPORT
].report_list
, list
) {
571 for (i
= 0; i
< report
->maxfield
; i
++) {
572 field
= report
->field
[i
];
573 for (j
= 0; j
< field
->maxusage
; j
++) {
574 usage
= &field
->usage
[j
];
575 if ((usage
->hid
& HID_USAGE_PAGE
) == page
&&
576 (usage
->hid
& 0xFFFF) == hid_code
) {
586 static void usbhid_set_leds(struct hid_device
*hid
)
588 struct hid_field
*field
;
591 if ((offset
= hid_find_field_early(hid
, HID_UP_LED
, 0x01, &field
)) != -1) {
592 hid_set_field(field
, offset
, 0);
593 usbhid_submit_report(hid
, field
->report
, USB_DIR_OUT
);
598 * Traverse the supplied list of reports and find the longest
600 static void hid_find_max_report(struct hid_device
*hid
, unsigned int type
, int *max
)
602 struct hid_report
*report
;
605 list_for_each_entry(report
, &hid
->report_enum
[type
].report_list
, list
) {
606 size
= ((report
->size
- 1) >> 3) + 1;
607 if (type
== HID_INPUT_REPORT
&& hid
->report_enum
[type
].numbered
)
614 static int hid_alloc_buffers(struct usb_device
*dev
, struct hid_device
*hid
)
616 struct usbhid_device
*usbhid
= hid
->driver_data
;
618 if (!(usbhid
->inbuf
= usb_buffer_alloc(dev
, usbhid
->bufsize
, GFP_ATOMIC
, &usbhid
->inbuf_dma
)))
620 if (!(usbhid
->outbuf
= usb_buffer_alloc(dev
, usbhid
->bufsize
, GFP_ATOMIC
, &usbhid
->outbuf_dma
)))
622 if (!(usbhid
->cr
= usb_buffer_alloc(dev
, sizeof(*(usbhid
->cr
)), GFP_ATOMIC
, &usbhid
->cr_dma
)))
624 if (!(usbhid
->ctrlbuf
= usb_buffer_alloc(dev
, usbhid
->bufsize
, GFP_ATOMIC
, &usbhid
->ctrlbuf_dma
)))
630 static void hid_free_buffers(struct usb_device
*dev
, struct hid_device
*hid
)
632 struct usbhid_device
*usbhid
= hid
->driver_data
;
634 usb_buffer_free(dev
, usbhid
->bufsize
, usbhid
->inbuf
, usbhid
->inbuf_dma
);
635 usb_buffer_free(dev
, usbhid
->bufsize
, usbhid
->outbuf
, usbhid
->outbuf_dma
);
636 usb_buffer_free(dev
, sizeof(*(usbhid
->cr
)), usbhid
->cr
, usbhid
->cr_dma
);
637 usb_buffer_free(dev
, usbhid
->bufsize
, usbhid
->ctrlbuf
, usbhid
->ctrlbuf_dma
);
641 * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
642 * to "operational". Without this, the ps3 controller will not report any
645 static void hid_fixup_sony_ps3_controller(struct usb_device
*dev
, int ifnum
)
648 char *buf
= kmalloc(18, GFP_KERNEL
);
653 result
= usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0),
655 USB_DIR_IN
| USB_TYPE_CLASS
|
657 (3 << 8) | 0xf2, ifnum
, buf
, 17,
658 USB_CTRL_GET_TIMEOUT
);
661 err_hid("%s failed: %d\n", __func__
, result
);
666 static struct hid_device
*usb_hid_configure(struct usb_interface
*intf
)
668 struct usb_host_interface
*interface
= intf
->cur_altsetting
;
669 struct usb_device
*dev
= interface_to_usbdev (intf
);
670 struct hid_descriptor
*hdesc
;
671 struct hid_device
*hid
;
675 int n
, len
, insize
= 0;
676 struct usbhid_device
*usbhid
;
678 quirks
= usbhid_lookup_quirk(le16_to_cpu(dev
->descriptor
.idVendor
),
679 le16_to_cpu(dev
->descriptor
.idProduct
));
681 /* Many keyboards and mice don't like to be polled for reports,
682 * so we will always set the HID_QUIRK_NOGET flag for them. */
683 if (interface
->desc
.bInterfaceSubClass
== USB_INTERFACE_SUBCLASS_BOOT
) {
684 if (interface
->desc
.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_KEYBOARD
||
685 interface
->desc
.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_MOUSE
)
686 quirks
|= HID_QUIRK_NOGET
;
689 if (quirks
& HID_QUIRK_IGNORE
)
692 if ((quirks
& HID_QUIRK_IGNORE_MOUSE
) &&
693 (interface
->desc
.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_MOUSE
))
697 if (usb_get_extra_descriptor(interface
, HID_DT_HID
, &hdesc
) &&
698 (!interface
->desc
.bNumEndpoints
||
699 usb_get_extra_descriptor(&interface
->endpoint
[0], HID_DT_HID
, &hdesc
))) {
700 dbg_hid("class descriptor not present\n");
704 for (n
= 0; n
< hdesc
->bNumDescriptors
; n
++)
705 if (hdesc
->desc
[n
].bDescriptorType
== HID_DT_REPORT
)
706 rsize
= le16_to_cpu(hdesc
->desc
[n
].wDescriptorLength
);
708 if (!rsize
|| rsize
> HID_MAX_DESCRIPTOR_SIZE
) {
709 dbg_hid("weird size of report descriptor (%u)\n", rsize
);
713 if (!(rdesc
= kmalloc(rsize
, GFP_KERNEL
))) {
714 dbg_hid("couldn't allocate rdesc memory\n");
718 hid_set_idle(dev
, interface
->desc
.bInterfaceNumber
, 0, 0);
720 if ((n
= hid_get_class_descriptor(dev
, interface
->desc
.bInterfaceNumber
, HID_DT_REPORT
, rdesc
, rsize
)) < 0) {
721 dbg_hid("reading report descriptor failed\n");
726 usbhid_fixup_report_descriptor(le16_to_cpu(dev
->descriptor
.idVendor
),
727 le16_to_cpu(dev
->descriptor
.idProduct
), rdesc
,
728 rsize
, rdesc_quirks_param
);
730 dbg_hid("report descriptor (size %u, read %d) = ", rsize
, n
);
731 for (n
= 0; n
< rsize
; n
++)
732 dbg_hid_line(" %02x", (unsigned char) rdesc
[n
]);
735 if (!(hid
= hid_parse_report(rdesc
, n
))) {
736 dbg_hid("parsing report descriptor failed\n");
742 hid
->quirks
= quirks
;
744 if (!(usbhid
= kzalloc(sizeof(struct usbhid_device
), GFP_KERNEL
)))
747 hid
->driver_data
= usbhid
;
750 usbhid
->bufsize
= HID_MIN_BUFFER_SIZE
;
751 hid_find_max_report(hid
, HID_INPUT_REPORT
, &usbhid
->bufsize
);
752 hid_find_max_report(hid
, HID_OUTPUT_REPORT
, &usbhid
->bufsize
);
753 hid_find_max_report(hid
, HID_FEATURE_REPORT
, &usbhid
->bufsize
);
755 if (usbhid
->bufsize
> HID_MAX_BUFFER_SIZE
)
756 usbhid
->bufsize
= HID_MAX_BUFFER_SIZE
;
758 hid_find_max_report(hid
, HID_INPUT_REPORT
, &insize
);
760 if (insize
> HID_MAX_BUFFER_SIZE
)
761 insize
= HID_MAX_BUFFER_SIZE
;
763 if (hid_alloc_buffers(dev
, hid
)) {
764 hid_free_buffers(dev
, hid
);
768 for (n
= 0; n
< interface
->desc
.bNumEndpoints
; n
++) {
770 struct usb_endpoint_descriptor
*endpoint
;
774 endpoint
= &interface
->endpoint
[n
].desc
;
775 if ((endpoint
->bmAttributes
& 3) != 3) /* Not an interrupt endpoint */
778 interval
= endpoint
->bInterval
;
780 /* Change the polling interval of mice. */
781 if (hid
->collection
->usage
== HID_GD_MOUSE
&& hid_mousepoll_interval
> 0)
782 interval
= hid_mousepoll_interval
;
784 if (usb_endpoint_dir_in(endpoint
)) {
787 if (!(usbhid
->urbin
= usb_alloc_urb(0, GFP_KERNEL
)))
789 pipe
= usb_rcvintpipe(dev
, endpoint
->bEndpointAddress
);
790 usb_fill_int_urb(usbhid
->urbin
, dev
, pipe
, usbhid
->inbuf
, insize
,
791 hid_irq_in
, hid
, interval
);
792 usbhid
->urbin
->transfer_dma
= usbhid
->inbuf_dma
;
793 usbhid
->urbin
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
797 if (!(usbhid
->urbout
= usb_alloc_urb(0, GFP_KERNEL
)))
799 pipe
= usb_sndintpipe(dev
, endpoint
->bEndpointAddress
);
800 usb_fill_int_urb(usbhid
->urbout
, dev
, pipe
, usbhid
->outbuf
, 0,
801 hid_irq_out
, hid
, interval
);
802 usbhid
->urbout
->transfer_dma
= usbhid
->outbuf_dma
;
803 usbhid
->urbout
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
807 if (!usbhid
->urbin
) {
808 err_hid("couldn't find an input interrupt endpoint");
812 init_waitqueue_head(&hid
->wait
);
814 INIT_WORK(&usbhid
->reset_work
, hid_reset
);
815 setup_timer(&usbhid
->io_retry
, hid_retry_timeout
, (unsigned long) hid
);
817 spin_lock_init(&usbhid
->inlock
);
818 spin_lock_init(&usbhid
->outlock
);
819 spin_lock_init(&usbhid
->ctrllock
);
821 hid
->version
= le16_to_cpu(hdesc
->bcdHID
);
822 hid
->country
= hdesc
->bCountryCode
;
823 hid
->dev
= &intf
->dev
;
825 usbhid
->ifnum
= interface
->desc
.bInterfaceNumber
;
829 if (dev
->manufacturer
)
830 strlcpy(hid
->name
, dev
->manufacturer
, sizeof(hid
->name
));
833 if (dev
->manufacturer
)
834 strlcat(hid
->name
, " ", sizeof(hid
->name
));
835 strlcat(hid
->name
, dev
->product
, sizeof(hid
->name
));
838 if (!strlen(hid
->name
))
839 snprintf(hid
->name
, sizeof(hid
->name
), "HID %04x:%04x",
840 le16_to_cpu(dev
->descriptor
.idVendor
),
841 le16_to_cpu(dev
->descriptor
.idProduct
));
844 hid
->vendor
= le16_to_cpu(dev
->descriptor
.idVendor
);
845 hid
->product
= le16_to_cpu(dev
->descriptor
.idProduct
);
847 usb_make_path(dev
, hid
->phys
, sizeof(hid
->phys
));
848 strlcat(hid
->phys
, "/input", sizeof(hid
->phys
));
849 len
= strlen(hid
->phys
);
850 if (len
< sizeof(hid
->phys
) - 1)
851 snprintf(hid
->phys
+ len
, sizeof(hid
->phys
) - len
,
852 "%d", intf
->altsetting
[0].desc
.bInterfaceNumber
);
854 if (usb_string(dev
, dev
->descriptor
.iSerialNumber
, hid
->uniq
, 64) <= 0)
857 usbhid
->urbctrl
= usb_alloc_urb(0, GFP_KERNEL
);
858 if (!usbhid
->urbctrl
)
861 usb_fill_control_urb(usbhid
->urbctrl
, dev
, 0, (void *) usbhid
->cr
,
862 usbhid
->ctrlbuf
, 1, hid_ctrl
, hid
);
863 usbhid
->urbctrl
->setup_dma
= usbhid
->cr_dma
;
864 usbhid
->urbctrl
->transfer_dma
= usbhid
->ctrlbuf_dma
;
865 usbhid
->urbctrl
->transfer_flags
|= (URB_NO_TRANSFER_DMA_MAP
| URB_NO_SETUP_DMA_MAP
);
866 hid
->hidinput_input_event
= usb_hidinput_input_event
;
867 hid
->hid_open
= usbhid_open
;
868 hid
->hid_close
= usbhid_close
;
869 #ifdef CONFIG_USB_HIDDEV
870 hid
->hiddev_hid_event
= hiddev_hid_event
;
871 hid
->hiddev_report_event
= hiddev_report_event
;
876 usb_free_urb(usbhid
->urbin
);
877 usb_free_urb(usbhid
->urbout
);
878 usb_free_urb(usbhid
->urbctrl
);
879 hid_free_buffers(dev
, hid
);
882 hid_free_device(hid
);
887 static void hid_disconnect(struct usb_interface
*intf
)
889 struct hid_device
*hid
= usb_get_intfdata (intf
);
890 struct usbhid_device
*usbhid
;
895 usbhid
= hid
->driver_data
;
897 spin_lock_irq(&usbhid
->inlock
); /* Sync with error handler */
898 usb_set_intfdata(intf
, NULL
);
899 spin_unlock_irq(&usbhid
->inlock
);
900 usb_kill_urb(usbhid
->urbin
);
901 usb_kill_urb(usbhid
->urbout
);
902 usb_kill_urb(usbhid
->urbctrl
);
904 del_timer_sync(&usbhid
->io_retry
);
905 cancel_work_sync(&usbhid
->reset_work
);
907 if (hid
->claimed
& HID_CLAIMED_INPUT
)
908 hidinput_disconnect(hid
);
909 if (hid
->claimed
& HID_CLAIMED_HIDDEV
)
910 hiddev_disconnect(hid
);
912 usb_free_urb(usbhid
->urbin
);
913 usb_free_urb(usbhid
->urbctrl
);
914 usb_free_urb(usbhid
->urbout
);
916 hid_free_buffers(hid_to_usb_dev(hid
), hid
);
918 hid_free_device(hid
);
921 static int hid_probe(struct usb_interface
*intf
, const struct usb_device_id
*id
)
923 struct hid_device
*hid
;
928 dbg_hid("HID probe called for ifnum %d\n",
929 intf
->altsetting
->desc
.bInterfaceNumber
);
931 if (!(hid
= usb_hid_configure(intf
)))
934 usbhid_init_reports(hid
);
935 hid_dump_device(hid
);
936 if (hid
->quirks
& HID_QUIRK_RESET_LEDS
)
937 usbhid_set_leds(hid
);
939 if (!hidinput_connect(hid
))
940 hid
->claimed
|= HID_CLAIMED_INPUT
;
941 if (!hiddev_connect(hid
))
942 hid
->claimed
|= HID_CLAIMED_HIDDEV
;
944 usb_set_intfdata(intf
, hid
);
947 printk ("HID device not claimed by input or hiddev\n");
948 hid_disconnect(intf
);
952 if ((hid
->claimed
& HID_CLAIMED_INPUT
))
955 if (hid
->quirks
& HID_QUIRK_SONY_PS3_CONTROLLER
)
956 hid_fixup_sony_ps3_controller(interface_to_usbdev(intf
),
957 intf
->cur_altsetting
->desc
.bInterfaceNumber
);
961 if (hid
->claimed
& HID_CLAIMED_INPUT
)
963 if (hid
->claimed
== (HID_CLAIMED_INPUT
| HID_CLAIMED_HIDDEV
))
965 if (hid
->claimed
& HID_CLAIMED_HIDDEV
)
966 printk("hiddev%d", hid
->minor
);
969 for (i
= 0; i
< hid
->maxcollection
; i
++) {
970 if (hid
->collection
[i
].type
== HID_COLLECTION_APPLICATION
&&
971 (hid
->collection
[i
].usage
& HID_USAGE_PAGE
) == HID_UP_GENDESK
&&
972 (hid
->collection
[i
].usage
& 0xffff) < ARRAY_SIZE(hid_types
)) {
973 c
= hid_types
[hid
->collection
[i
].usage
& 0xffff];
978 usb_make_path(interface_to_usbdev(intf
), path
, 63);
980 printk(": USB HID v%x.%02x %s [%s] on %s\n",
981 hid
->version
>> 8, hid
->version
& 0xff, c
, hid
->name
, path
);
986 static int hid_suspend(struct usb_interface
*intf
, pm_message_t message
)
988 struct hid_device
*hid
= usb_get_intfdata (intf
);
989 struct usbhid_device
*usbhid
= hid
->driver_data
;
991 spin_lock_irq(&usbhid
->inlock
); /* Sync with error handler */
992 set_bit(HID_SUSPENDED
, &usbhid
->iofl
);
993 spin_unlock_irq(&usbhid
->inlock
);
994 del_timer(&usbhid
->io_retry
);
995 usb_kill_urb(usbhid
->urbin
);
996 dev_dbg(&intf
->dev
, "suspend\n");
1000 static int hid_resume(struct usb_interface
*intf
)
1002 struct hid_device
*hid
= usb_get_intfdata (intf
);
1003 struct usbhid_device
*usbhid
= hid
->driver_data
;
1006 clear_bit(HID_SUSPENDED
, &usbhid
->iofl
);
1007 usbhid
->retry_delay
= 0;
1008 status
= hid_start_in(hid
);
1009 dev_dbg(&intf
->dev
, "resume status %d\n", status
);
1013 /* Treat USB reset pretty much the same as suspend/resume */
1014 static int hid_pre_reset(struct usb_interface
*intf
)
1016 /* FIXME: What if the interface is already suspended? */
1017 hid_suspend(intf
, PMSG_ON
);
1021 /* Same routine used for post_reset and reset_resume */
1022 static int hid_post_reset(struct usb_interface
*intf
)
1024 struct usb_device
*dev
= interface_to_usbdev (intf
);
1026 hid_set_idle(dev
, intf
->cur_altsetting
->desc
.bInterfaceNumber
, 0, 0);
1027 /* FIXME: Any more reinitialization needed? */
1029 return hid_resume(intf
);
1032 static struct usb_device_id hid_usb_ids
[] = {
1033 { .match_flags
= USB_DEVICE_ID_MATCH_INT_CLASS
,
1034 .bInterfaceClass
= USB_INTERFACE_CLASS_HID
},
1035 { } /* Terminating entry */
1038 MODULE_DEVICE_TABLE (usb
, hid_usb_ids
);
1040 static struct usb_driver hid_driver
= {
1043 .disconnect
= hid_disconnect
,
1044 .suspend
= hid_suspend
,
1045 .resume
= hid_resume
,
1046 .reset_resume
= hid_post_reset
,
1047 .pre_reset
= hid_pre_reset
,
1048 .post_reset
= hid_post_reset
,
1049 .id_table
= hid_usb_ids
,
1052 static int __init
hid_init(void)
1055 retval
= usbhid_quirks_init(quirks_param
);
1057 goto usbhid_quirks_init_fail
;
1058 retval
= hiddev_init();
1060 goto hiddev_init_fail
;
1061 retval
= usb_register(&hid_driver
);
1063 goto usb_register_fail
;
1064 info(DRIVER_VERSION
":" DRIVER_DESC
);
1070 usbhid_quirks_exit();
1071 usbhid_quirks_init_fail
:
1075 static void __exit
hid_exit(void)
1077 usb_deregister(&hid_driver
);
1079 usbhid_quirks_exit();
1082 module_init(hid_init
);
1083 module_exit(hid_exit
);
1085 MODULE_AUTHOR(DRIVER_AUTHOR
);
1086 MODULE_DESCRIPTION(DRIVER_DESC
);
1087 MODULE_LICENSE(DRIVER_LICENSE
);