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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * USB HID support for Linux | |
3 | * | |
4 | * Copyright (c) 1999 Andreas Gal | |
bf0964dc MH |
5 | * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> |
6 | * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc | |
b55fd23c | 7 | * Copyright (c) 2006-2007 Jiri Kosina |
1da177e4 LT |
8 | */ |
9 | ||
10 | /* | |
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) | |
14 | * any later version. | |
15 | */ | |
16 | ||
17 | #include <linux/module.h> | |
18 | #include <linux/slab.h> | |
19 | #include <linux/init.h> | |
20 | #include <linux/kernel.h> | |
1da177e4 LT |
21 | #include <linux/list.h> |
22 | #include <linux/mm.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> | |
29 | ||
1da177e4 LT |
30 | #include <linux/usb.h> |
31 | ||
dde5845a | 32 | #include <linux/hid.h> |
1da177e4 | 33 | #include <linux/hiddev.h> |
c080d89a | 34 | #include <linux/hid-debug.h> |
4916b3a5 | 35 | #include "usbhid.h" |
1da177e4 LT |
36 | |
37 | /* | |
38 | * Version Information | |
39 | */ | |
40 | ||
bf0964dc | 41 | #define DRIVER_VERSION "v2.6" |
f142b3a4 | 42 | #define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik, Jiri Kosina" |
1da177e4 LT |
43 | #define DRIVER_DESC "USB HID core driver" |
44 | #define DRIVER_LICENSE "GPL" | |
45 | ||
46 | static char *hid_types[] = {"Device", "Pointer", "Mouse", "Device", "Joystick", | |
47 | "Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"}; | |
48 | /* | |
49 | * Module parameters. | |
50 | */ | |
51 | ||
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"); | |
55 | ||
1da177e4 | 56 | /* |
48b4554a | 57 | * Input submission and I/O error handler. |
1da177e4 LT |
58 | */ |
59 | ||
48b4554a JK |
60 | static void hid_io_error(struct hid_device *hid); |
61 | ||
62 | /* Start up the input URB */ | |
63 | static int hid_start_in(struct hid_device *hid) | |
1da177e4 | 64 | { |
1da177e4 | 65 | unsigned long flags; |
48b4554a JK |
66 | int rc = 0; |
67 | struct usbhid_device *usbhid = hid->driver_data; | |
1da177e4 | 68 | |
48b4554a JK |
69 | spin_lock_irqsave(&usbhid->inlock, flags); |
70 | if (hid->open > 0 && !test_bit(HID_SUSPENDED, &usbhid->iofl) && | |
71 | !test_and_set_bit(HID_IN_RUNNING, &usbhid->iofl)) { | |
72 | rc = usb_submit_urb(usbhid->urbin, GFP_ATOMIC); | |
73 | if (rc != 0) | |
74 | clear_bit(HID_IN_RUNNING, &usbhid->iofl); | |
1da177e4 | 75 | } |
48b4554a JK |
76 | spin_unlock_irqrestore(&usbhid->inlock, flags); |
77 | return rc; | |
1da177e4 LT |
78 | } |
79 | ||
48b4554a JK |
80 | /* I/O retry timer routine */ |
81 | static void hid_retry_timeout(unsigned long _hid) | |
1da177e4 | 82 | { |
48b4554a | 83 | struct hid_device *hid = (struct hid_device *) _hid; |
4916b3a5 | 84 | struct usbhid_device *usbhid = hid->driver_data; |
1da177e4 | 85 | |
48b4554a JK |
86 | dev_dbg(&usbhid->intf->dev, "retrying intr urb\n"); |
87 | if (hid_start_in(hid)) | |
88 | hid_io_error(hid); | |
1da177e4 LT |
89 | } |
90 | ||
48b4554a JK |
91 | /* Workqueue routine to reset the device or clear a halt */ |
92 | static void hid_reset(struct work_struct *work) | |
1da177e4 | 93 | { |
48b4554a JK |
94 | struct usbhid_device *usbhid = |
95 | container_of(work, struct usbhid_device, reset_work); | |
96 | struct hid_device *hid = usbhid->hid; | |
97 | int rc_lock, rc = 0; | |
1da177e4 | 98 | |
48b4554a JK |
99 | if (test_bit(HID_CLEAR_HALT, &usbhid->iofl)) { |
100 | dev_dbg(&usbhid->intf->dev, "clear halt\n"); | |
101 | rc = usb_clear_halt(hid_to_usb_dev(hid), usbhid->urbin->pipe); | |
102 | clear_bit(HID_CLEAR_HALT, &usbhid->iofl); | |
103 | hid_start_in(hid); | |
104 | } | |
1da177e4 | 105 | |
48b4554a JK |
106 | else if (test_bit(HID_RESET_PENDING, &usbhid->iofl)) { |
107 | dev_dbg(&usbhid->intf->dev, "resetting device\n"); | |
108 | rc = rc_lock = usb_lock_device_for_reset(hid_to_usb_dev(hid), usbhid->intf); | |
109 | if (rc_lock >= 0) { | |
110 | rc = usb_reset_composite_device(hid_to_usb_dev(hid), usbhid->intf); | |
111 | if (rc_lock) | |
112 | usb_unlock_device(hid_to_usb_dev(hid)); | |
1da177e4 | 113 | } |
48b4554a | 114 | clear_bit(HID_RESET_PENDING, &usbhid->iofl); |
1da177e4 LT |
115 | } |
116 | ||
48b4554a JK |
117 | switch (rc) { |
118 | case 0: | |
119 | if (!test_bit(HID_IN_RUNNING, &usbhid->iofl)) | |
120 | hid_io_error(hid); | |
121 | break; | |
122 | default: | |
123 | err("can't reset device, %s-%s/input%d, status %d", | |
124 | hid_to_usb_dev(hid)->bus->bus_name, | |
125 | hid_to_usb_dev(hid)->devpath, | |
126 | usbhid->ifnum, rc); | |
127 | /* FALLTHROUGH */ | |
128 | case -EHOSTUNREACH: | |
129 | case -ENODEV: | |
130 | case -EINTR: | |
131 | break; | |
1da177e4 | 132 | } |
1da177e4 LT |
133 | } |
134 | ||
48b4554a JK |
135 | /* Main I/O error handler */ |
136 | static void hid_io_error(struct hid_device *hid) | |
dde5845a | 137 | { |
48b4554a JK |
138 | unsigned long flags; |
139 | struct usbhid_device *usbhid = hid->driver_data; | |
dde5845a | 140 | |
48b4554a | 141 | spin_lock_irqsave(&usbhid->inlock, flags); |
dde5845a | 142 | |
48b4554a JK |
143 | /* Stop when disconnected */ |
144 | if (usb_get_intfdata(usbhid->intf) == NULL) | |
145 | goto done; | |
dde5845a | 146 | |
5e2a55f2 AS |
147 | /* If it has been a while since the last error, we'll assume |
148 | * this a brand new error and reset the retry timeout. */ | |
149 | if (time_after(jiffies, usbhid->stop_retry + HZ/2)) | |
150 | usbhid->retry_delay = 0; | |
151 | ||
48b4554a JK |
152 | /* When an error occurs, retry at increasing intervals */ |
153 | if (usbhid->retry_delay == 0) { | |
154 | usbhid->retry_delay = 13; /* Then 26, 52, 104, 104, ... */ | |
155 | usbhid->stop_retry = jiffies + msecs_to_jiffies(1000); | |
156 | } else if (usbhid->retry_delay < 100) | |
157 | usbhid->retry_delay *= 2; | |
dde5845a | 158 | |
48b4554a | 159 | if (time_after(jiffies, usbhid->stop_retry)) { |
4916b3a5 | 160 | |
48b4554a JK |
161 | /* Retries failed, so do a port reset */ |
162 | if (!test_and_set_bit(HID_RESET_PENDING, &usbhid->iofl)) { | |
163 | schedule_work(&usbhid->reset_work); | |
164 | goto done; | |
165 | } | |
1da177e4 LT |
166 | } |
167 | ||
48b4554a JK |
168 | mod_timer(&usbhid->io_retry, |
169 | jiffies + msecs_to_jiffies(usbhid->retry_delay)); | |
170 | done: | |
171 | spin_unlock_irqrestore(&usbhid->inlock, flags); | |
1da177e4 LT |
172 | } |
173 | ||
48b4554a JK |
174 | /* |
175 | * Input interrupt completion handler. | |
176 | */ | |
854561b0 | 177 | |
48b4554a | 178 | static void hid_irq_in(struct urb *urb) |
1da177e4 | 179 | { |
48b4554a JK |
180 | struct hid_device *hid = urb->context; |
181 | struct usbhid_device *usbhid = hid->driver_data; | |
182 | int status; | |
1da177e4 | 183 | |
48b4554a JK |
184 | switch (urb->status) { |
185 | case 0: /* success */ | |
186 | usbhid->retry_delay = 0; | |
187 | hid_input_report(urb->context, HID_INPUT_REPORT, | |
188 | urb->transfer_buffer, | |
189 | urb->actual_length, 1); | |
190 | break; | |
191 | case -EPIPE: /* stall */ | |
192 | clear_bit(HID_IN_RUNNING, &usbhid->iofl); | |
193 | set_bit(HID_CLEAR_HALT, &usbhid->iofl); | |
194 | schedule_work(&usbhid->reset_work); | |
195 | return; | |
196 | case -ECONNRESET: /* unlink */ | |
197 | case -ENOENT: | |
198 | case -ESHUTDOWN: /* unplug */ | |
199 | clear_bit(HID_IN_RUNNING, &usbhid->iofl); | |
200 | return; | |
201 | case -EILSEQ: /* protocol error or unplug */ | |
202 | case -EPROTO: /* protocol error or unplug */ | |
203 | case -ETIME: /* protocol error or unplug */ | |
204 | case -ETIMEDOUT: /* Should never happen, but... */ | |
205 | clear_bit(HID_IN_RUNNING, &usbhid->iofl); | |
206 | hid_io_error(hid); | |
207 | return; | |
208 | default: /* error */ | |
209 | warn("input irq status %d received", urb->status); | |
210 | } | |
1da177e4 | 211 | |
48b4554a JK |
212 | status = usb_submit_urb(urb, GFP_ATOMIC); |
213 | if (status) { | |
214 | clear_bit(HID_IN_RUNNING, &usbhid->iofl); | |
215 | if (status != -EPERM) { | |
216 | err("can't resubmit intr, %s-%s/input%d, status %d", | |
217 | hid_to_usb_dev(hid)->bus->bus_name, | |
218 | hid_to_usb_dev(hid)->devpath, | |
219 | usbhid->ifnum, status); | |
220 | hid_io_error(hid); | |
221 | } | |
222 | } | |
1da177e4 LT |
223 | } |
224 | ||
48b4554a | 225 | static int hid_submit_out(struct hid_device *hid) |
1da177e4 | 226 | { |
48b4554a | 227 | struct hid_report *report; |
4916b3a5 JK |
228 | struct usbhid_device *usbhid = hid->driver_data; |
229 | ||
48b4554a | 230 | report = usbhid->out[usbhid->outtail]; |
1da177e4 | 231 | |
48b4554a JK |
232 | hid_output_report(report, usbhid->outbuf); |
233 | usbhid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) + 1 + (report->id > 0); | |
234 | usbhid->urbout->dev = hid_to_usb_dev(hid); | |
1d3e2023 | 235 | |
48b4554a | 236 | dbg("submitting out urb"); |
d57cdcff | 237 | |
48b4554a JK |
238 | if (usb_submit_urb(usbhid->urbout, GFP_ATOMIC)) { |
239 | err("usb_submit_urb(out) failed"); | |
240 | return -1; | |
241 | } | |
1da177e4 | 242 | |
48b4554a JK |
243 | return 0; |
244 | } | |
245 | ||
246 | static int hid_submit_ctrl(struct hid_device *hid) | |
1da177e4 LT |
247 | { |
248 | struct hid_report *report; | |
48b4554a JK |
249 | unsigned char dir; |
250 | int len; | |
4916b3a5 | 251 | struct usbhid_device *usbhid = hid->driver_data; |
1da177e4 | 252 | |
48b4554a JK |
253 | report = usbhid->ctrl[usbhid->ctrltail].report; |
254 | dir = usbhid->ctrl[usbhid->ctrltail].dir; | |
1da177e4 | 255 | |
48b4554a JK |
256 | len = ((report->size - 1) >> 3) + 1 + (report->id > 0); |
257 | if (dir == USB_DIR_OUT) { | |
258 | hid_output_report(report, usbhid->ctrlbuf); | |
259 | usbhid->urbctrl->pipe = usb_sndctrlpipe(hid_to_usb_dev(hid), 0); | |
260 | usbhid->urbctrl->transfer_buffer_length = len; | |
261 | } else { | |
262 | int maxpacket, padlen; | |
1da177e4 | 263 | |
48b4554a JK |
264 | usbhid->urbctrl->pipe = usb_rcvctrlpipe(hid_to_usb_dev(hid), 0); |
265 | maxpacket = usb_maxpacket(hid_to_usb_dev(hid), usbhid->urbctrl->pipe, 0); | |
266 | if (maxpacket > 0) { | |
267 | padlen = (len + maxpacket - 1) / maxpacket; | |
268 | padlen *= maxpacket; | |
269 | if (padlen > usbhid->bufsize) | |
270 | padlen = usbhid->bufsize; | |
271 | } else | |
272 | padlen = 0; | |
273 | usbhid->urbctrl->transfer_buffer_length = padlen; | |
1da177e4 | 274 | } |
48b4554a | 275 | usbhid->urbctrl->dev = hid_to_usb_dev(hid); |
1da177e4 | 276 | |
48b4554a JK |
277 | usbhid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir; |
278 | usbhid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT : HID_REQ_GET_REPORT; | |
279 | usbhid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) | report->id); | |
280 | usbhid->cr->wIndex = cpu_to_le16(usbhid->ifnum); | |
281 | usbhid->cr->wLength = cpu_to_le16(len); | |
1da177e4 | 282 | |
48b4554a JK |
283 | dbg("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u", |
284 | usbhid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" : "Get_Report", | |
285 | usbhid->cr->wValue, usbhid->cr->wIndex, usbhid->cr->wLength); | |
1da177e4 | 286 | |
48b4554a JK |
287 | if (usb_submit_urb(usbhid->urbctrl, GFP_ATOMIC)) { |
288 | err("usb_submit_urb(ctrl) failed"); | |
289 | return -1; | |
290 | } | |
1da177e4 | 291 | |
48b4554a JK |
292 | return 0; |
293 | } | |
1da177e4 | 294 | |
48b4554a JK |
295 | /* |
296 | * Output interrupt completion handler. | |
297 | */ | |
1da177e4 | 298 | |
48b4554a JK |
299 | static void hid_irq_out(struct urb *urb) |
300 | { | |
301 | struct hid_device *hid = urb->context; | |
302 | struct usbhid_device *usbhid = hid->driver_data; | |
303 | unsigned long flags; | |
304 | int unplug = 0; | |
1da177e4 | 305 | |
48b4554a JK |
306 | switch (urb->status) { |
307 | case 0: /* success */ | |
308 | break; | |
309 | case -ESHUTDOWN: /* unplug */ | |
310 | unplug = 1; | |
311 | case -EILSEQ: /* protocol error or unplug */ | |
312 | case -EPROTO: /* protocol error or unplug */ | |
313 | case -ECONNRESET: /* unlink */ | |
314 | case -ENOENT: | |
315 | break; | |
316 | default: /* error */ | |
317 | warn("output irq status %d received", urb->status); | |
318 | } | |
1da177e4 | 319 | |
48b4554a | 320 | spin_lock_irqsave(&usbhid->outlock, flags); |
1da177e4 | 321 | |
48b4554a JK |
322 | if (unplug) |
323 | usbhid->outtail = usbhid->outhead; | |
324 | else | |
325 | usbhid->outtail = (usbhid->outtail + 1) & (HID_OUTPUT_FIFO_SIZE - 1); | |
1da177e4 | 326 | |
48b4554a JK |
327 | if (usbhid->outhead != usbhid->outtail) { |
328 | if (hid_submit_out(hid)) { | |
329 | clear_bit(HID_OUT_RUNNING, &usbhid->iofl); | |
330 | wake_up(&hid->wait); | |
331 | } | |
332 | spin_unlock_irqrestore(&usbhid->outlock, flags); | |
333 | return; | |
334 | } | |
1da177e4 | 335 | |
48b4554a JK |
336 | clear_bit(HID_OUT_RUNNING, &usbhid->iofl); |
337 | spin_unlock_irqrestore(&usbhid->outlock, flags); | |
338 | wake_up(&hid->wait); | |
339 | } | |
6345fdfd | 340 | |
48b4554a JK |
341 | /* |
342 | * Control pipe completion handler. | |
343 | */ | |
1da177e4 | 344 | |
48b4554a JK |
345 | static void hid_ctrl(struct urb *urb) |
346 | { | |
347 | struct hid_device *hid = urb->context; | |
348 | struct usbhid_device *usbhid = hid->driver_data; | |
349 | unsigned long flags; | |
350 | int unplug = 0; | |
1da177e4 | 351 | |
48b4554a | 352 | spin_lock_irqsave(&usbhid->ctrllock, flags); |
1da177e4 | 353 | |
48b4554a JK |
354 | switch (urb->status) { |
355 | case 0: /* success */ | |
356 | if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_IN) | |
357 | hid_input_report(urb->context, usbhid->ctrl[usbhid->ctrltail].report->type, | |
358 | urb->transfer_buffer, urb->actual_length, 0); | |
359 | break; | |
360 | case -ESHUTDOWN: /* unplug */ | |
361 | unplug = 1; | |
362 | case -EILSEQ: /* protocol error or unplug */ | |
363 | case -EPROTO: /* protocol error or unplug */ | |
364 | case -ECONNRESET: /* unlink */ | |
365 | case -ENOENT: | |
366 | case -EPIPE: /* report not available */ | |
367 | break; | |
368 | default: /* error */ | |
369 | warn("ctrl urb status %d received", urb->status); | |
370 | } | |
1da177e4 | 371 | |
48b4554a JK |
372 | if (unplug) |
373 | usbhid->ctrltail = usbhid->ctrlhead; | |
374 | else | |
375 | usbhid->ctrltail = (usbhid->ctrltail + 1) & (HID_CONTROL_FIFO_SIZE - 1); | |
1da177e4 | 376 | |
48b4554a JK |
377 | if (usbhid->ctrlhead != usbhid->ctrltail) { |
378 | if (hid_submit_ctrl(hid)) { | |
379 | clear_bit(HID_CTRL_RUNNING, &usbhid->iofl); | |
380 | wake_up(&hid->wait); | |
381 | } | |
382 | spin_unlock_irqrestore(&usbhid->ctrllock, flags); | |
383 | return; | |
384 | } | |
1da177e4 | 385 | |
48b4554a JK |
386 | clear_bit(HID_CTRL_RUNNING, &usbhid->iofl); |
387 | spin_unlock_irqrestore(&usbhid->ctrllock, flags); | |
388 | wake_up(&hid->wait); | |
389 | } | |
1da177e4 | 390 | |
48b4554a JK |
391 | void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir) |
392 | { | |
393 | int head; | |
394 | unsigned long flags; | |
395 | struct usbhid_device *usbhid = hid->driver_data; | |
1da177e4 | 396 | |
48b4554a JK |
397 | if ((hid->quirks & HID_QUIRK_NOGET) && dir == USB_DIR_IN) |
398 | return; | |
b857c651 | 399 | |
48b4554a | 400 | if (usbhid->urbout && dir == USB_DIR_OUT && report->type == HID_OUTPUT_REPORT) { |
1da177e4 | 401 | |
48b4554a | 402 | spin_lock_irqsave(&usbhid->outlock, flags); |
1da177e4 | 403 | |
48b4554a JK |
404 | if ((head = (usbhid->outhead + 1) & (HID_OUTPUT_FIFO_SIZE - 1)) == usbhid->outtail) { |
405 | spin_unlock_irqrestore(&usbhid->outlock, flags); | |
406 | warn("output queue full"); | |
407 | return; | |
408 | } | |
1da177e4 | 409 | |
48b4554a JK |
410 | usbhid->out[usbhid->outhead] = report; |
411 | usbhid->outhead = head; | |
4871d3be | 412 | |
48b4554a JK |
413 | if (!test_and_set_bit(HID_OUT_RUNNING, &usbhid->iofl)) |
414 | if (hid_submit_out(hid)) | |
415 | clear_bit(HID_OUT_RUNNING, &usbhid->iofl); | |
8fd6db47 | 416 | |
48b4554a JK |
417 | spin_unlock_irqrestore(&usbhid->outlock, flags); |
418 | return; | |
419 | } | |
1da177e4 | 420 | |
48b4554a | 421 | spin_lock_irqsave(&usbhid->ctrllock, flags); |
940824b0 | 422 | |
48b4554a JK |
423 | if ((head = (usbhid->ctrlhead + 1) & (HID_CONTROL_FIFO_SIZE - 1)) == usbhid->ctrltail) { |
424 | spin_unlock_irqrestore(&usbhid->ctrllock, flags); | |
425 | warn("control queue full"); | |
426 | return; | |
427 | } | |
8fd80133 | 428 | |
48b4554a JK |
429 | usbhid->ctrl[usbhid->ctrlhead].report = report; |
430 | usbhid->ctrl[usbhid->ctrlhead].dir = dir; | |
431 | usbhid->ctrlhead = head; | |
8fd80133 | 432 | |
48b4554a JK |
433 | if (!test_and_set_bit(HID_CTRL_RUNNING, &usbhid->iofl)) |
434 | if (hid_submit_ctrl(hid)) | |
435 | clear_bit(HID_CTRL_RUNNING, &usbhid->iofl); | |
931e24b9 | 436 | |
48b4554a JK |
437 | spin_unlock_irqrestore(&usbhid->ctrllock, flags); |
438 | } | |
23b0d968 | 439 | |
48b4554a JK |
440 | static int usb_hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) |
441 | { | |
442 | struct hid_device *hid = dev->private; | |
443 | struct hid_field *field; | |
444 | int offset; | |
41ad5fba | 445 | |
48b4554a JK |
446 | if (type == EV_FF) |
447 | return input_ff_event(dev, type, code, value); | |
8d2bad87 | 448 | |
48b4554a JK |
449 | if (type != EV_LED) |
450 | return -1; | |
5556feae | 451 | |
48b4554a JK |
452 | if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) { |
453 | warn("event field not found"); | |
454 | return -1; | |
455 | } | |
4a1a4d8b | 456 | |
48b4554a JK |
457 | hid_set_field(field, offset, value); |
458 | usbhid_submit_report(hid, field->report, USB_DIR_OUT); | |
1da177e4 | 459 | |
48b4554a JK |
460 | return 0; |
461 | } | |
1da177e4 | 462 | |
48b4554a JK |
463 | int usbhid_wait_io(struct hid_device *hid) |
464 | { | |
465 | struct usbhid_device *usbhid = hid->driver_data; | |
25914662 | 466 | |
48b4554a JK |
467 | if (!wait_event_timeout(hid->wait, (!test_bit(HID_CTRL_RUNNING, &usbhid->iofl) && |
468 | !test_bit(HID_OUT_RUNNING, &usbhid->iofl)), | |
469 | 10*HZ)) { | |
470 | dbg("timeout waiting for ctrl or out queue to clear"); | |
471 | return -1; | |
472 | } | |
1da177e4 | 473 | |
48b4554a JK |
474 | return 0; |
475 | } | |
53880546 | 476 | |
48b4554a JK |
477 | static int hid_set_idle(struct usb_device *dev, int ifnum, int report, int idle) |
478 | { | |
479 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
480 | HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, (idle << 8) | report, | |
481 | ifnum, NULL, 0, USB_CTRL_SET_TIMEOUT); | |
482 | } | |
1da177e4 | 483 | |
48b4554a JK |
484 | static int hid_get_class_descriptor(struct usb_device *dev, int ifnum, |
485 | unsigned char type, void *buf, int size) | |
486 | { | |
487 | int result, retries = 4; | |
1da177e4 | 488 | |
48b4554a | 489 | memset(buf, 0, size); |
1da177e4 | 490 | |
48b4554a JK |
491 | do { |
492 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
493 | USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN, | |
494 | (type << 8), ifnum, buf, size, USB_CTRL_GET_TIMEOUT); | |
495 | retries--; | |
496 | } while (result < size && retries); | |
497 | return result; | |
498 | } | |
940824b0 | 499 | |
48b4554a JK |
500 | int usbhid_open(struct hid_device *hid) |
501 | { | |
502 | ++hid->open; | |
503 | if (hid_start_in(hid)) | |
504 | hid_io_error(hid); | |
505 | return 0; | |
506 | } | |
a417a21e | 507 | |
48b4554a JK |
508 | void usbhid_close(struct hid_device *hid) |
509 | { | |
510 | struct usbhid_device *usbhid = hid->driver_data; | |
eab9edd2 | 511 | |
48b4554a JK |
512 | if (!--hid->open) |
513 | usb_kill_urb(usbhid->urbin); | |
514 | } | |
1d3e2023 | 515 | |
48b4554a JK |
516 | /* |
517 | * Initialize all reports | |
518 | */ | |
41ad5fba | 519 | |
48b4554a JK |
520 | void usbhid_init_reports(struct hid_device *hid) |
521 | { | |
522 | struct hid_report *report; | |
523 | struct usbhid_device *usbhid = hid->driver_data; | |
524 | int err, ret; | |
41ad5fba | 525 | |
48b4554a JK |
526 | list_for_each_entry(report, &hid->report_enum[HID_INPUT_REPORT].report_list, list) |
527 | usbhid_submit_report(hid, report, USB_DIR_IN); | |
5556feae | 528 | |
48b4554a JK |
529 | list_for_each_entry(report, &hid->report_enum[HID_FEATURE_REPORT].report_list, list) |
530 | usbhid_submit_report(hid, report, USB_DIR_IN); | |
4a1a4d8b | 531 | |
48b4554a JK |
532 | err = 0; |
533 | ret = usbhid_wait_io(hid); | |
534 | while (ret) { | |
535 | err |= ret; | |
536 | if (test_bit(HID_CTRL_RUNNING, &usbhid->iofl)) | |
537 | usb_kill_urb(usbhid->urbctrl); | |
538 | if (test_bit(HID_OUT_RUNNING, &usbhid->iofl)) | |
539 | usb_kill_urb(usbhid->urbout); | |
540 | ret = usbhid_wait_io(hid); | |
541 | } | |
3f9b4076 | 542 | |
48b4554a JK |
543 | if (err) |
544 | warn("timeout initializing reports"); | |
545 | } | |
1da177e4 | 546 | |
713c8aad PZ |
547 | /* |
548 | * Reset LEDs which BIOS might have left on. For now, just NumLock (0x01). | |
549 | */ | |
550 | static int hid_find_field_early(struct hid_device *hid, unsigned int page, | |
551 | unsigned int hid_code, struct hid_field **pfield) | |
552 | { | |
553 | struct hid_report *report; | |
554 | struct hid_field *field; | |
555 | struct hid_usage *usage; | |
556 | int i, j; | |
557 | ||
558 | list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) { | |
559 | for (i = 0; i < report->maxfield; i++) { | |
560 | field = report->field[i]; | |
561 | for (j = 0; j < field->maxusage; j++) { | |
562 | usage = &field->usage[j]; | |
563 | if ((usage->hid & HID_USAGE_PAGE) == page && | |
564 | (usage->hid & 0xFFFF) == hid_code) { | |
565 | *pfield = field; | |
566 | return j; | |
567 | } | |
568 | } | |
569 | } | |
570 | } | |
571 | return -1; | |
572 | } | |
573 | ||
574 | static void usbhid_set_leds(struct hid_device *hid) | |
575 | { | |
576 | struct hid_field *field; | |
577 | int offset; | |
578 | ||
579 | if ((offset = hid_find_field_early(hid, HID_UP_LED, 0x01, &field)) != -1) { | |
580 | hid_set_field(field, offset, 0); | |
581 | usbhid_submit_report(hid, field->report, USB_DIR_OUT); | |
582 | } | |
583 | } | |
584 | ||
bf0964dc MH |
585 | /* |
586 | * Traverse the supplied list of reports and find the longest | |
587 | */ | |
588 | static void hid_find_max_report(struct hid_device *hid, unsigned int type, int *max) | |
589 | { | |
590 | struct hid_report *report; | |
591 | int size; | |
592 | ||
593 | list_for_each_entry(report, &hid->report_enum[type].report_list, list) { | |
594 | size = ((report->size - 1) >> 3) + 1; | |
595 | if (type == HID_INPUT_REPORT && hid->report_enum[type].numbered) | |
596 | size++; | |
597 | if (*max < size) | |
598 | *max = size; | |
599 | } | |
600 | } | |
601 | ||
1da177e4 LT |
602 | static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid) |
603 | { | |
4916b3a5 JK |
604 | struct usbhid_device *usbhid = hid->driver_data; |
605 | ||
606 | if (!(usbhid->inbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_ATOMIC, &usbhid->inbuf_dma))) | |
1da177e4 | 607 | return -1; |
4916b3a5 | 608 | if (!(usbhid->outbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_ATOMIC, &usbhid->outbuf_dma))) |
1da177e4 | 609 | return -1; |
4916b3a5 | 610 | if (!(usbhid->cr = usb_buffer_alloc(dev, sizeof(*(usbhid->cr)), GFP_ATOMIC, &usbhid->cr_dma))) |
1da177e4 | 611 | return -1; |
4916b3a5 | 612 | if (!(usbhid->ctrlbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_ATOMIC, &usbhid->ctrlbuf_dma))) |
1da177e4 LT |
613 | return -1; |
614 | ||
615 | return 0; | |
616 | } | |
617 | ||
618 | static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid) | |
619 | { | |
4916b3a5 JK |
620 | struct usbhid_device *usbhid = hid->driver_data; |
621 | ||
622 | if (usbhid->inbuf) | |
623 | usb_buffer_free(dev, usbhid->bufsize, usbhid->inbuf, usbhid->inbuf_dma); | |
624 | if (usbhid->outbuf) | |
625 | usb_buffer_free(dev, usbhid->bufsize, usbhid->outbuf, usbhid->outbuf_dma); | |
626 | if (usbhid->cr) | |
627 | usb_buffer_free(dev, sizeof(*(usbhid->cr)), usbhid->cr, usbhid->cr_dma); | |
628 | if (usbhid->ctrlbuf) | |
629 | usb_buffer_free(dev, usbhid->bufsize, usbhid->ctrlbuf, usbhid->ctrlbuf_dma); | |
1da177e4 LT |
630 | } |
631 | ||
940824b0 VP |
632 | /* |
633 | * Cherry Cymotion keyboard have an invalid HID report descriptor, | |
634 | * that needs fixing before we can parse it. | |
635 | */ | |
636 | ||
637 | static void hid_fixup_cymotion_descriptor(char *rdesc, int rsize) | |
638 | { | |
639 | if (rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) { | |
640 | info("Fixing up Cherry Cymotion report descriptor"); | |
641 | rdesc[11] = rdesc[16] = 0xff; | |
642 | rdesc[12] = rdesc[17] = 0x03; | |
643 | } | |
644 | } | |
645 | ||
4a1a4d8b GL |
646 | /* |
647 | * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller | |
648 | * to "operational". Without this, the ps3 controller will not report any | |
649 | * events. | |
650 | */ | |
651 | static void hid_fixup_sony_ps3_controller(struct usb_device *dev, int ifnum) | |
652 | { | |
653 | int result; | |
654 | char *buf = kmalloc(18, GFP_KERNEL); | |
655 | ||
656 | if (!buf) | |
657 | return; | |
658 | ||
659 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
660 | HID_REQ_GET_REPORT, | |
661 | USB_DIR_IN | USB_TYPE_CLASS | | |
662 | USB_RECIP_INTERFACE, | |
663 | (3 << 8) | 0xf2, ifnum, buf, 17, | |
664 | USB_CTRL_GET_TIMEOUT); | |
665 | ||
666 | if (result < 0) | |
667 | err("%s failed: %d\n", __func__, result); | |
668 | ||
669 | kfree(buf); | |
670 | } | |
671 | ||
b55fd23c | 672 | /* |
85cbea39 | 673 | * Certain Logitech keyboards send in report #3 keys which are far |
b55fd23c JK |
674 | * above the logical maximum described in descriptor. This extends |
675 | * the original value of 0x28c of logical maximum to 0x104d | |
676 | */ | |
85cbea39 | 677 | static void hid_fixup_logitech_descriptor(unsigned char *rdesc, int rsize) |
b55fd23c JK |
678 | { |
679 | if (rsize >= 90 && rdesc[83] == 0x26 | |
680 | && rdesc[84] == 0x8c | |
681 | && rdesc[85] == 0x02) { | |
85cbea39 | 682 | info("Fixing up Logitech keyboard report descriptor"); |
b55fd23c JK |
683 | rdesc[84] = rdesc[89] = 0x4d; |
684 | rdesc[85] = rdesc[90] = 0x10; | |
685 | } | |
686 | } | |
687 | ||
1da177e4 LT |
688 | static struct hid_device *usb_hid_configure(struct usb_interface *intf) |
689 | { | |
690 | struct usb_host_interface *interface = intf->cur_altsetting; | |
691 | struct usb_device *dev = interface_to_usbdev (intf); | |
692 | struct hid_descriptor *hdesc; | |
693 | struct hid_device *hid; | |
2eb5dc30 | 694 | u32 quirks = 0; |
4cbe7d28 | 695 | unsigned rsize = 0; |
c5b7c7c3 DT |
696 | char *rdesc; |
697 | int n, len, insize = 0; | |
4916b3a5 | 698 | struct usbhid_device *usbhid; |
1da177e4 | 699 | |
2eb5dc30 PW |
700 | quirks = usbhid_lookup_quirk(le16_to_cpu(dev->descriptor.idVendor), |
701 | le16_to_cpu(dev->descriptor.idProduct)); | |
1da177e4 | 702 | |
0f28b55d AS |
703 | /* Many keyboards and mice don't like to be polled for reports, |
704 | * so we will always set the HID_QUIRK_NOGET flag for them. */ | |
705 | if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT) { | |
706 | if (interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_KEYBOARD || | |
707 | interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_MOUSE) | |
708 | quirks |= HID_QUIRK_NOGET; | |
709 | } | |
710 | ||
1da177e4 LT |
711 | if (quirks & HID_QUIRK_IGNORE) |
712 | return NULL; | |
713 | ||
a417a21e SS |
714 | if ((quirks & HID_QUIRK_IGNORE_MOUSE) && |
715 | (interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_MOUSE)) | |
716 | return NULL; | |
717 | ||
718 | ||
c5b7c7c3 DT |
719 | if (usb_get_extra_descriptor(interface, HID_DT_HID, &hdesc) && |
720 | (!interface->desc.bNumEndpoints || | |
721 | usb_get_extra_descriptor(&interface->endpoint[0], HID_DT_HID, &hdesc))) { | |
722 | dbg("class descriptor not present\n"); | |
723 | return NULL; | |
1da177e4 LT |
724 | } |
725 | ||
726 | for (n = 0; n < hdesc->bNumDescriptors; n++) | |
727 | if (hdesc->desc[n].bDescriptorType == HID_DT_REPORT) | |
728 | rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength); | |
729 | ||
730 | if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) { | |
731 | dbg("weird size of report descriptor (%u)", rsize); | |
732 | return NULL; | |
733 | } | |
734 | ||
735 | if (!(rdesc = kmalloc(rsize, GFP_KERNEL))) { | |
736 | dbg("couldn't allocate rdesc memory"); | |
737 | return NULL; | |
738 | } | |
739 | ||
854561b0 VP |
740 | hid_set_idle(dev, interface->desc.bInterfaceNumber, 0, 0); |
741 | ||
1da177e4 LT |
742 | if ((n = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, HID_DT_REPORT, rdesc, rsize)) < 0) { |
743 | dbg("reading report descriptor failed"); | |
744 | kfree(rdesc); | |
745 | return NULL; | |
746 | } | |
747 | ||
940824b0 VP |
748 | if ((quirks & HID_QUIRK_CYMOTION)) |
749 | hid_fixup_cymotion_descriptor(rdesc, rsize); | |
750 | ||
85cbea39 JK |
751 | if (quirks & HID_QUIRK_LOGITECH_DESCRIPTOR) |
752 | hid_fixup_logitech_descriptor(rdesc, rsize); | |
b55fd23c | 753 | |
fdc9c566 | 754 | #ifdef CONFIG_HID_DEBUG |
1da177e4 LT |
755 | printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n); |
756 | for (n = 0; n < rsize; n++) | |
757 | printk(" %02x", (unsigned char) rdesc[n]); | |
758 | printk("\n"); | |
759 | #endif | |
760 | ||
761 | if (!(hid = hid_parse_report(rdesc, n))) { | |
762 | dbg("parsing report descriptor failed"); | |
763 | kfree(rdesc); | |
764 | return NULL; | |
765 | } | |
766 | ||
767 | kfree(rdesc); | |
768 | hid->quirks = quirks; | |
769 | ||
4916b3a5 JK |
770 | if (!(usbhid = kzalloc(sizeof(struct usbhid_device), GFP_KERNEL))) |
771 | goto fail; | |
772 | ||
773 | hid->driver_data = usbhid; | |
774 | usbhid->hid = hid; | |
775 | ||
776 | usbhid->bufsize = HID_MIN_BUFFER_SIZE; | |
777 | hid_find_max_report(hid, HID_INPUT_REPORT, &usbhid->bufsize); | |
778 | hid_find_max_report(hid, HID_OUTPUT_REPORT, &usbhid->bufsize); | |
779 | hid_find_max_report(hid, HID_FEATURE_REPORT, &usbhid->bufsize); | |
bf0964dc | 780 | |
4916b3a5 JK |
781 | if (usbhid->bufsize > HID_MAX_BUFFER_SIZE) |
782 | usbhid->bufsize = HID_MAX_BUFFER_SIZE; | |
bf0964dc MH |
783 | |
784 | hid_find_max_report(hid, HID_INPUT_REPORT, &insize); | |
785 | ||
786 | if (insize > HID_MAX_BUFFER_SIZE) | |
787 | insize = HID_MAX_BUFFER_SIZE; | |
788 | ||
1da177e4 LT |
789 | if (hid_alloc_buffers(dev, hid)) { |
790 | hid_free_buffers(dev, hid); | |
791 | goto fail; | |
792 | } | |
793 | ||
794 | for (n = 0; n < interface->desc.bNumEndpoints; n++) { | |
795 | ||
796 | struct usb_endpoint_descriptor *endpoint; | |
797 | int pipe; | |
798 | int interval; | |
799 | ||
800 | endpoint = &interface->endpoint[n].desc; | |
801 | if ((endpoint->bmAttributes & 3) != 3) /* Not an interrupt endpoint */ | |
802 | continue; | |
803 | ||
1da177e4 | 804 | interval = endpoint->bInterval; |
1da177e4 LT |
805 | |
806 | /* Change the polling interval of mice. */ | |
807 | if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0) | |
808 | interval = hid_mousepoll_interval; | |
05f091ab | 809 | |
0f12aa03 | 810 | if (usb_endpoint_dir_in(endpoint)) { |
4916b3a5 | 811 | if (usbhid->urbin) |
1da177e4 | 812 | continue; |
4916b3a5 | 813 | if (!(usbhid->urbin = usb_alloc_urb(0, GFP_KERNEL))) |
1da177e4 LT |
814 | goto fail; |
815 | pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); | |
4916b3a5 | 816 | usb_fill_int_urb(usbhid->urbin, dev, pipe, usbhid->inbuf, insize, |
1da177e4 | 817 | hid_irq_in, hid, interval); |
4916b3a5 JK |
818 | usbhid->urbin->transfer_dma = usbhid->inbuf_dma; |
819 | usbhid->urbin->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1da177e4 | 820 | } else { |
4916b3a5 | 821 | if (usbhid->urbout) |
1da177e4 | 822 | continue; |
4916b3a5 | 823 | if (!(usbhid->urbout = usb_alloc_urb(0, GFP_KERNEL))) |
1da177e4 LT |
824 | goto fail; |
825 | pipe = usb_sndintpipe(dev, endpoint->bEndpointAddress); | |
4916b3a5 | 826 | usb_fill_int_urb(usbhid->urbout, dev, pipe, usbhid->outbuf, 0, |
1da177e4 | 827 | hid_irq_out, hid, interval); |
4916b3a5 JK |
828 | usbhid->urbout->transfer_dma = usbhid->outbuf_dma; |
829 | usbhid->urbout->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1da177e4 LT |
830 | } |
831 | } | |
832 | ||
4916b3a5 | 833 | if (!usbhid->urbin) { |
1da177e4 LT |
834 | err("couldn't find an input interrupt endpoint"); |
835 | goto fail; | |
836 | } | |
837 | ||
838 | init_waitqueue_head(&hid->wait); | |
839 | ||
4916b3a5 JK |
840 | INIT_WORK(&usbhid->reset_work, hid_reset); |
841 | setup_timer(&usbhid->io_retry, hid_retry_timeout, (unsigned long) hid); | |
aef4e266 | 842 | |
4916b3a5 JK |
843 | spin_lock_init(&usbhid->inlock); |
844 | spin_lock_init(&usbhid->outlock); | |
845 | spin_lock_init(&usbhid->ctrllock); | |
1da177e4 LT |
846 | |
847 | hid->version = le16_to_cpu(hdesc->bcdHID); | |
848 | hid->country = hdesc->bCountryCode; | |
be820975 | 849 | hid->dev = &intf->dev; |
4916b3a5 JK |
850 | usbhid->intf = intf; |
851 | usbhid->ifnum = interface->desc.bInterfaceNumber; | |
1da177e4 LT |
852 | |
853 | hid->name[0] = 0; | |
854 | ||
c5b7c7c3 DT |
855 | if (dev->manufacturer) |
856 | strlcpy(hid->name, dev->manufacturer, sizeof(hid->name)); | |
857 | ||
858 | if (dev->product) { | |
859 | if (dev->manufacturer) | |
860 | strlcat(hid->name, " ", sizeof(hid->name)); | |
861 | strlcat(hid->name, dev->product, sizeof(hid->name)); | |
862 | } | |
863 | ||
864 | if (!strlen(hid->name)) | |
865 | snprintf(hid->name, sizeof(hid->name), "HID %04x:%04x", | |
866 | le16_to_cpu(dev->descriptor.idVendor), | |
867 | le16_to_cpu(dev->descriptor.idProduct)); | |
1da177e4 | 868 | |
229695e5 | 869 | hid->bus = BUS_USB; |
9fa2ad5f JB |
870 | hid->vendor = le16_to_cpu(dev->descriptor.idVendor); |
871 | hid->product = le16_to_cpu(dev->descriptor.idProduct); | |
229695e5 | 872 | |
c5b7c7c3 DT |
873 | usb_make_path(dev, hid->phys, sizeof(hid->phys)); |
874 | strlcat(hid->phys, "/input", sizeof(hid->phys)); | |
875 | len = strlen(hid->phys); | |
876 | if (len < sizeof(hid->phys) - 1) | |
877 | snprintf(hid->phys + len, sizeof(hid->phys) - len, | |
878 | "%d", intf->altsetting[0].desc.bInterfaceNumber); | |
1da177e4 LT |
879 | |
880 | if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0) | |
881 | hid->uniq[0] = 0; | |
882 | ||
4916b3a5 JK |
883 | usbhid->urbctrl = usb_alloc_urb(0, GFP_KERNEL); |
884 | if (!usbhid->urbctrl) | |
1da177e4 | 885 | goto fail; |
c5b7c7c3 | 886 | |
4916b3a5 JK |
887 | usb_fill_control_urb(usbhid->urbctrl, dev, 0, (void *) usbhid->cr, |
888 | usbhid->ctrlbuf, 1, hid_ctrl, hid); | |
889 | usbhid->urbctrl->setup_dma = usbhid->cr_dma; | |
890 | usbhid->urbctrl->transfer_dma = usbhid->ctrlbuf_dma; | |
891 | usbhid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP); | |
229695e5 | 892 | hid->hidinput_input_event = usb_hidinput_input_event; |
7c379146 JK |
893 | hid->hid_open = usbhid_open; |
894 | hid->hid_close = usbhid_close; | |
aa938f79 JK |
895 | #ifdef CONFIG_USB_HIDDEV |
896 | hid->hiddev_hid_event = hiddev_hid_event; | |
aa8de2f0 | 897 | hid->hiddev_report_event = hiddev_report_event; |
aa938f79 | 898 | #endif |
1da177e4 LT |
899 | return hid; |
900 | ||
901 | fail: | |
4916b3a5 JK |
902 | usb_free_urb(usbhid->urbin); |
903 | usb_free_urb(usbhid->urbout); | |
904 | usb_free_urb(usbhid->urbctrl); | |
1da177e4 LT |
905 | hid_free_buffers(dev, hid); |
906 | hid_free_device(hid); | |
907 | ||
908 | return NULL; | |
909 | } | |
910 | ||
911 | static void hid_disconnect(struct usb_interface *intf) | |
912 | { | |
913 | struct hid_device *hid = usb_get_intfdata (intf); | |
4916b3a5 | 914 | struct usbhid_device *usbhid; |
1da177e4 LT |
915 | |
916 | if (!hid) | |
917 | return; | |
918 | ||
4916b3a5 JK |
919 | usbhid = hid->driver_data; |
920 | ||
921 | spin_lock_irq(&usbhid->inlock); /* Sync with error handler */ | |
1da177e4 | 922 | usb_set_intfdata(intf, NULL); |
4916b3a5 JK |
923 | spin_unlock_irq(&usbhid->inlock); |
924 | usb_kill_urb(usbhid->urbin); | |
925 | usb_kill_urb(usbhid->urbout); | |
926 | usb_kill_urb(usbhid->urbctrl); | |
1da177e4 | 927 | |
4916b3a5 | 928 | del_timer_sync(&usbhid->io_retry); |
aef4e266 AS |
929 | flush_scheduled_work(); |
930 | ||
1da177e4 LT |
931 | if (hid->claimed & HID_CLAIMED_INPUT) |
932 | hidinput_disconnect(hid); | |
933 | if (hid->claimed & HID_CLAIMED_HIDDEV) | |
934 | hiddev_disconnect(hid); | |
935 | ||
4916b3a5 JK |
936 | usb_free_urb(usbhid->urbin); |
937 | usb_free_urb(usbhid->urbctrl); | |
938 | usb_free_urb(usbhid->urbout); | |
1da177e4 | 939 | |
be820975 | 940 | hid_free_buffers(hid_to_usb_dev(hid), hid); |
1da177e4 LT |
941 | hid_free_device(hid); |
942 | } | |
943 | ||
944 | static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
945 | { | |
946 | struct hid_device *hid; | |
947 | char path[64]; | |
948 | int i; | |
949 | char *c; | |
950 | ||
951 | dbg("HID probe called for ifnum %d", | |
952 | intf->altsetting->desc.bInterfaceNumber); | |
953 | ||
954 | if (!(hid = usb_hid_configure(intf))) | |
479f6ea8 | 955 | return -ENODEV; |
1da177e4 | 956 | |
4916b3a5 | 957 | usbhid_init_reports(hid); |
1da177e4 | 958 | hid_dump_device(hid); |
713c8aad PZ |
959 | if (hid->quirks & HID_QUIRK_RESET_LEDS) |
960 | usbhid_set_leds(hid); | |
1da177e4 LT |
961 | |
962 | if (!hidinput_connect(hid)) | |
963 | hid->claimed |= HID_CLAIMED_INPUT; | |
964 | if (!hiddev_connect(hid)) | |
965 | hid->claimed |= HID_CLAIMED_HIDDEV; | |
966 | ||
967 | usb_set_intfdata(intf, hid); | |
968 | ||
969 | if (!hid->claimed) { | |
970 | printk ("HID device not claimed by input or hiddev\n"); | |
971 | hid_disconnect(intf); | |
479f6ea8 | 972 | return -ENODEV; |
1da177e4 LT |
973 | } |
974 | ||
c4146067 | 975 | if ((hid->claimed & HID_CLAIMED_INPUT)) |
4916b3a5 JK |
976 | hid_ff_init(hid); |
977 | ||
4a1a4d8b GL |
978 | if (hid->quirks & HID_QUIRK_SONY_PS3_CONTROLLER) |
979 | hid_fixup_sony_ps3_controller(interface_to_usbdev(intf), | |
980 | intf->cur_altsetting->desc.bInterfaceNumber); | |
981 | ||
1da177e4 LT |
982 | printk(KERN_INFO); |
983 | ||
984 | if (hid->claimed & HID_CLAIMED_INPUT) | |
985 | printk("input"); | |
986 | if (hid->claimed == (HID_CLAIMED_INPUT | HID_CLAIMED_HIDDEV)) | |
987 | printk(","); | |
988 | if (hid->claimed & HID_CLAIMED_HIDDEV) | |
989 | printk("hiddev%d", hid->minor); | |
990 | ||
991 | c = "Device"; | |
992 | for (i = 0; i < hid->maxcollection; i++) { | |
993 | if (hid->collection[i].type == HID_COLLECTION_APPLICATION && | |
994 | (hid->collection[i].usage & HID_USAGE_PAGE) == HID_UP_GENDESK && | |
995 | (hid->collection[i].usage & 0xffff) < ARRAY_SIZE(hid_types)) { | |
996 | c = hid_types[hid->collection[i].usage & 0xffff]; | |
997 | break; | |
998 | } | |
999 | } | |
1000 | ||
1001 | usb_make_path(interface_to_usbdev(intf), path, 63); | |
1002 | ||
1003 | printk(": USB HID v%x.%02x %s [%s] on %s\n", | |
1004 | hid->version >> 8, hid->version & 0xff, c, hid->name, path); | |
1005 | ||
1006 | return 0; | |
1007 | } | |
1008 | ||
27d72e85 | 1009 | static int hid_suspend(struct usb_interface *intf, pm_message_t message) |
1da177e4 LT |
1010 | { |
1011 | struct hid_device *hid = usb_get_intfdata (intf); | |
4916b3a5 | 1012 | struct usbhid_device *usbhid = hid->driver_data; |
1da177e4 | 1013 | |
4916b3a5 JK |
1014 | spin_lock_irq(&usbhid->inlock); /* Sync with error handler */ |
1015 | set_bit(HID_SUSPENDED, &usbhid->iofl); | |
1016 | spin_unlock_irq(&usbhid->inlock); | |
1017 | del_timer(&usbhid->io_retry); | |
1018 | usb_kill_urb(usbhid->urbin); | |
1da177e4 LT |
1019 | dev_dbg(&intf->dev, "suspend\n"); |
1020 | return 0; | |
1021 | } | |
1022 | ||
1023 | static int hid_resume(struct usb_interface *intf) | |
1024 | { | |
1025 | struct hid_device *hid = usb_get_intfdata (intf); | |
4916b3a5 | 1026 | struct usbhid_device *usbhid = hid->driver_data; |
1da177e4 LT |
1027 | int status; |
1028 | ||
4916b3a5 JK |
1029 | clear_bit(HID_SUSPENDED, &usbhid->iofl); |
1030 | usbhid->retry_delay = 0; | |
aef4e266 | 1031 | status = hid_start_in(hid); |
1da177e4 LT |
1032 | dev_dbg(&intf->dev, "resume status %d\n", status); |
1033 | return status; | |
1034 | } | |
1035 | ||
df9a1f48 AS |
1036 | /* Treat USB reset pretty much the same as suspend/resume */ |
1037 | static void hid_pre_reset(struct usb_interface *intf) | |
1038 | { | |
1039 | /* FIXME: What if the interface is already suspended? */ | |
1040 | hid_suspend(intf, PMSG_ON); | |
1041 | } | |
1042 | ||
1043 | static void hid_post_reset(struct usb_interface *intf) | |
1044 | { | |
1045 | struct usb_device *dev = interface_to_usbdev (intf); | |
1046 | ||
1047 | hid_set_idle(dev, intf->cur_altsetting->desc.bInterfaceNumber, 0, 0); | |
1048 | /* FIXME: Any more reinitialization needed? */ | |
1049 | ||
1050 | hid_resume(intf); | |
1051 | } | |
1052 | ||
1da177e4 LT |
1053 | static struct usb_device_id hid_usb_ids [] = { |
1054 | { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS, | |
1055 | .bInterfaceClass = USB_INTERFACE_CLASS_HID }, | |
1056 | { } /* Terminating entry */ | |
1057 | }; | |
1058 | ||
1059 | MODULE_DEVICE_TABLE (usb, hid_usb_ids); | |
1060 | ||
1061 | static struct usb_driver hid_driver = { | |
1da177e4 LT |
1062 | .name = "usbhid", |
1063 | .probe = hid_probe, | |
1064 | .disconnect = hid_disconnect, | |
1065 | .suspend = hid_suspend, | |
1066 | .resume = hid_resume, | |
df9a1f48 AS |
1067 | .pre_reset = hid_pre_reset, |
1068 | .post_reset = hid_post_reset, | |
1da177e4 LT |
1069 | .id_table = hid_usb_ids, |
1070 | }; | |
1071 | ||
1072 | static int __init hid_init(void) | |
1073 | { | |
1074 | int retval; | |
1075 | retval = hiddev_init(); | |
1076 | if (retval) | |
1077 | goto hiddev_init_fail; | |
1078 | retval = usb_register(&hid_driver); | |
1079 | if (retval) | |
1080 | goto usb_register_fail; | |
1081 | info(DRIVER_VERSION ":" DRIVER_DESC); | |
1082 | ||
1083 | return 0; | |
1084 | usb_register_fail: | |
1085 | hiddev_exit(); | |
1086 | hiddev_init_fail: | |
1087 | return retval; | |
1088 | } | |
1089 | ||
1090 | static void __exit hid_exit(void) | |
1091 | { | |
1092 | usb_deregister(&hid_driver); | |
1093 | hiddev_exit(); | |
1094 | } | |
1095 | ||
1096 | module_init(hid_init); | |
1097 | module_exit(hid_exit); | |
1098 | ||
1099 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
1100 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1101 | MODULE_LICENSE(DRIVER_LICENSE); |