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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 | ||
876b9276 PW |
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" | |
62 | " 0x-prefixed hex"); | |
ea9a4a8b JK |
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" | |
68 | " 0x-prefixed hex"); | |
1da177e4 | 69 | /* |
48b4554a | 70 | * Input submission and I/O error handler. |
1da177e4 LT |
71 | */ |
72 | ||
48b4554a JK |
73 | static void hid_io_error(struct hid_device *hid); |
74 | ||
75 | /* Start up the input URB */ | |
76 | static int hid_start_in(struct hid_device *hid) | |
1da177e4 | 77 | { |
1da177e4 | 78 | unsigned long flags; |
48b4554a JK |
79 | int rc = 0; |
80 | struct usbhid_device *usbhid = hid->driver_data; | |
1da177e4 | 81 | |
48b4554a JK |
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); | |
86 | if (rc != 0) | |
87 | clear_bit(HID_IN_RUNNING, &usbhid->iofl); | |
1da177e4 | 88 | } |
48b4554a JK |
89 | spin_unlock_irqrestore(&usbhid->inlock, flags); |
90 | return rc; | |
1da177e4 LT |
91 | } |
92 | ||
48b4554a JK |
93 | /* I/O retry timer routine */ |
94 | static void hid_retry_timeout(unsigned long _hid) | |
1da177e4 | 95 | { |
48b4554a | 96 | struct hid_device *hid = (struct hid_device *) _hid; |
4916b3a5 | 97 | struct usbhid_device *usbhid = hid->driver_data; |
1da177e4 | 98 | |
48b4554a JK |
99 | dev_dbg(&usbhid->intf->dev, "retrying intr urb\n"); |
100 | if (hid_start_in(hid)) | |
101 | hid_io_error(hid); | |
1da177e4 LT |
102 | } |
103 | ||
48b4554a JK |
104 | /* Workqueue routine to reset the device or clear a halt */ |
105 | static void hid_reset(struct work_struct *work) | |
1da177e4 | 106 | { |
48b4554a JK |
107 | struct usbhid_device *usbhid = |
108 | container_of(work, struct usbhid_device, reset_work); | |
109 | struct hid_device *hid = usbhid->hid; | |
110 | int rc_lock, rc = 0; | |
1da177e4 | 111 | |
48b4554a JK |
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); | |
116 | hid_start_in(hid); | |
117 | } | |
1da177e4 | 118 | |
48b4554a JK |
119 | else if (test_bit(HID_RESET_PENDING, &usbhid->iofl)) { |
120 | dev_dbg(&usbhid->intf->dev, "resetting device\n"); | |
121 | rc = rc_lock = usb_lock_device_for_reset(hid_to_usb_dev(hid), usbhid->intf); | |
122 | if (rc_lock >= 0) { | |
123 | rc = usb_reset_composite_device(hid_to_usb_dev(hid), usbhid->intf); | |
124 | if (rc_lock) | |
125 | usb_unlock_device(hid_to_usb_dev(hid)); | |
1da177e4 | 126 | } |
48b4554a | 127 | clear_bit(HID_RESET_PENDING, &usbhid->iofl); |
1da177e4 LT |
128 | } |
129 | ||
48b4554a JK |
130 | switch (rc) { |
131 | case 0: | |
132 | if (!test_bit(HID_IN_RUNNING, &usbhid->iofl)) | |
133 | hid_io_error(hid); | |
134 | break; | |
135 | default: | |
58037eb9 | 136 | err_hid("can't reset device, %s-%s/input%d, status %d", |
48b4554a JK |
137 | hid_to_usb_dev(hid)->bus->bus_name, |
138 | hid_to_usb_dev(hid)->devpath, | |
139 | usbhid->ifnum, rc); | |
140 | /* FALLTHROUGH */ | |
141 | case -EHOSTUNREACH: | |
142 | case -ENODEV: | |
143 | case -EINTR: | |
144 | break; | |
1da177e4 | 145 | } |
1da177e4 LT |
146 | } |
147 | ||
48b4554a JK |
148 | /* Main I/O error handler */ |
149 | static void hid_io_error(struct hid_device *hid) | |
dde5845a | 150 | { |
48b4554a JK |
151 | unsigned long flags; |
152 | struct usbhid_device *usbhid = hid->driver_data; | |
dde5845a | 153 | |
48b4554a | 154 | spin_lock_irqsave(&usbhid->inlock, flags); |
dde5845a | 155 | |
48b4554a JK |
156 | /* Stop when disconnected */ |
157 | if (usb_get_intfdata(usbhid->intf) == NULL) | |
158 | goto done; | |
dde5845a | 159 | |
5e2a55f2 AS |
160 | /* If it has been a while since the last error, we'll assume |
161 | * this a brand new error and reset the retry timeout. */ | |
162 | if (time_after(jiffies, usbhid->stop_retry + HZ/2)) | |
163 | usbhid->retry_delay = 0; | |
164 | ||
48b4554a JK |
165 | /* When an error occurs, retry at increasing intervals */ |
166 | if (usbhid->retry_delay == 0) { | |
167 | usbhid->retry_delay = 13; /* Then 26, 52, 104, 104, ... */ | |
168 | usbhid->stop_retry = jiffies + msecs_to_jiffies(1000); | |
169 | } else if (usbhid->retry_delay < 100) | |
170 | usbhid->retry_delay *= 2; | |
dde5845a | 171 | |
48b4554a | 172 | if (time_after(jiffies, usbhid->stop_retry)) { |
4916b3a5 | 173 | |
48b4554a JK |
174 | /* Retries failed, so do a port reset */ |
175 | if (!test_and_set_bit(HID_RESET_PENDING, &usbhid->iofl)) { | |
176 | schedule_work(&usbhid->reset_work); | |
177 | goto done; | |
178 | } | |
1da177e4 LT |
179 | } |
180 | ||
48b4554a JK |
181 | mod_timer(&usbhid->io_retry, |
182 | jiffies + msecs_to_jiffies(usbhid->retry_delay)); | |
183 | done: | |
184 | spin_unlock_irqrestore(&usbhid->inlock, flags); | |
1da177e4 LT |
185 | } |
186 | ||
48b4554a JK |
187 | /* |
188 | * Input interrupt completion handler. | |
189 | */ | |
854561b0 | 190 | |
48b4554a | 191 | static void hid_irq_in(struct urb *urb) |
1da177e4 | 192 | { |
48b4554a JK |
193 | struct hid_device *hid = urb->context; |
194 | struct usbhid_device *usbhid = hid->driver_data; | |
195 | int status; | |
1da177e4 | 196 | |
48b4554a JK |
197 | switch (urb->status) { |
198 | case 0: /* success */ | |
199 | usbhid->retry_delay = 0; | |
200 | hid_input_report(urb->context, HID_INPUT_REPORT, | |
201 | urb->transfer_buffer, | |
202 | urb->actual_length, 1); | |
203 | break; | |
204 | case -EPIPE: /* stall */ | |
205 | clear_bit(HID_IN_RUNNING, &usbhid->iofl); | |
206 | set_bit(HID_CLEAR_HALT, &usbhid->iofl); | |
207 | schedule_work(&usbhid->reset_work); | |
208 | return; | |
209 | case -ECONNRESET: /* unlink */ | |
210 | case -ENOENT: | |
211 | case -ESHUTDOWN: /* unplug */ | |
212 | clear_bit(HID_IN_RUNNING, &usbhid->iofl); | |
213 | return; | |
214 | case -EILSEQ: /* protocol error or unplug */ | |
215 | case -EPROTO: /* protocol error or unplug */ | |
216 | case -ETIME: /* protocol error or unplug */ | |
217 | case -ETIMEDOUT: /* Should never happen, but... */ | |
218 | clear_bit(HID_IN_RUNNING, &usbhid->iofl); | |
219 | hid_io_error(hid); | |
220 | return; | |
221 | default: /* error */ | |
222 | warn("input irq status %d received", urb->status); | |
223 | } | |
1da177e4 | 224 | |
48b4554a JK |
225 | status = usb_submit_urb(urb, GFP_ATOMIC); |
226 | if (status) { | |
227 | clear_bit(HID_IN_RUNNING, &usbhid->iofl); | |
228 | if (status != -EPERM) { | |
58037eb9 | 229 | err_hid("can't resubmit intr, %s-%s/input%d, status %d", |
48b4554a JK |
230 | hid_to_usb_dev(hid)->bus->bus_name, |
231 | hid_to_usb_dev(hid)->devpath, | |
232 | usbhid->ifnum, status); | |
233 | hid_io_error(hid); | |
234 | } | |
235 | } | |
1da177e4 LT |
236 | } |
237 | ||
48b4554a | 238 | static int hid_submit_out(struct hid_device *hid) |
1da177e4 | 239 | { |
48b4554a | 240 | struct hid_report *report; |
4916b3a5 JK |
241 | struct usbhid_device *usbhid = hid->driver_data; |
242 | ||
48b4554a | 243 | report = usbhid->out[usbhid->outtail]; |
1da177e4 | 244 | |
48b4554a JK |
245 | hid_output_report(report, usbhid->outbuf); |
246 | usbhid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) + 1 + (report->id > 0); | |
247 | usbhid->urbout->dev = hid_to_usb_dev(hid); | |
1d3e2023 | 248 | |
58037eb9 | 249 | dbg_hid("submitting out urb\n"); |
d57cdcff | 250 | |
48b4554a | 251 | if (usb_submit_urb(usbhid->urbout, GFP_ATOMIC)) { |
58037eb9 | 252 | err_hid("usb_submit_urb(out) failed"); |
48b4554a JK |
253 | return -1; |
254 | } | |
1da177e4 | 255 | |
48b4554a JK |
256 | return 0; |
257 | } | |
258 | ||
259 | static int hid_submit_ctrl(struct hid_device *hid) | |
1da177e4 LT |
260 | { |
261 | struct hid_report *report; | |
48b4554a JK |
262 | unsigned char dir; |
263 | int len; | |
4916b3a5 | 264 | struct usbhid_device *usbhid = hid->driver_data; |
1da177e4 | 265 | |
48b4554a JK |
266 | report = usbhid->ctrl[usbhid->ctrltail].report; |
267 | dir = usbhid->ctrl[usbhid->ctrltail].dir; | |
1da177e4 | 268 | |
48b4554a JK |
269 | len = ((report->size - 1) >> 3) + 1 + (report->id > 0); |
270 | if (dir == USB_DIR_OUT) { | |
271 | hid_output_report(report, usbhid->ctrlbuf); | |
272 | usbhid->urbctrl->pipe = usb_sndctrlpipe(hid_to_usb_dev(hid), 0); | |
273 | usbhid->urbctrl->transfer_buffer_length = len; | |
274 | } else { | |
275 | int maxpacket, padlen; | |
1da177e4 | 276 | |
48b4554a JK |
277 | usbhid->urbctrl->pipe = usb_rcvctrlpipe(hid_to_usb_dev(hid), 0); |
278 | maxpacket = usb_maxpacket(hid_to_usb_dev(hid), usbhid->urbctrl->pipe, 0); | |
279 | if (maxpacket > 0) { | |
280 | padlen = (len + maxpacket - 1) / maxpacket; | |
281 | padlen *= maxpacket; | |
282 | if (padlen > usbhid->bufsize) | |
283 | padlen = usbhid->bufsize; | |
284 | } else | |
285 | padlen = 0; | |
286 | usbhid->urbctrl->transfer_buffer_length = padlen; | |
1da177e4 | 287 | } |
48b4554a | 288 | usbhid->urbctrl->dev = hid_to_usb_dev(hid); |
1da177e4 | 289 | |
48b4554a JK |
290 | usbhid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir; |
291 | usbhid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT : HID_REQ_GET_REPORT; | |
292 | usbhid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) | report->id); | |
293 | usbhid->cr->wIndex = cpu_to_le16(usbhid->ifnum); | |
294 | usbhid->cr->wLength = cpu_to_le16(len); | |
1da177e4 | 295 | |
58037eb9 | 296 | dbg_hid("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u\n", |
48b4554a JK |
297 | usbhid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" : "Get_Report", |
298 | usbhid->cr->wValue, usbhid->cr->wIndex, usbhid->cr->wLength); | |
1da177e4 | 299 | |
48b4554a | 300 | if (usb_submit_urb(usbhid->urbctrl, GFP_ATOMIC)) { |
58037eb9 | 301 | err_hid("usb_submit_urb(ctrl) failed"); |
48b4554a JK |
302 | return -1; |
303 | } | |
1da177e4 | 304 | |
48b4554a JK |
305 | return 0; |
306 | } | |
1da177e4 | 307 | |
48b4554a JK |
308 | /* |
309 | * Output interrupt completion handler. | |
310 | */ | |
1da177e4 | 311 | |
48b4554a JK |
312 | static void hid_irq_out(struct urb *urb) |
313 | { | |
314 | struct hid_device *hid = urb->context; | |
315 | struct usbhid_device *usbhid = hid->driver_data; | |
316 | unsigned long flags; | |
317 | int unplug = 0; | |
1da177e4 | 318 | |
48b4554a JK |
319 | switch (urb->status) { |
320 | case 0: /* success */ | |
321 | break; | |
322 | case -ESHUTDOWN: /* unplug */ | |
323 | unplug = 1; | |
324 | case -EILSEQ: /* protocol error or unplug */ | |
325 | case -EPROTO: /* protocol error or unplug */ | |
326 | case -ECONNRESET: /* unlink */ | |
327 | case -ENOENT: | |
328 | break; | |
329 | default: /* error */ | |
330 | warn("output irq status %d received", urb->status); | |
331 | } | |
1da177e4 | 332 | |
48b4554a | 333 | spin_lock_irqsave(&usbhid->outlock, flags); |
1da177e4 | 334 | |
48b4554a JK |
335 | if (unplug) |
336 | usbhid->outtail = usbhid->outhead; | |
337 | else | |
338 | usbhid->outtail = (usbhid->outtail + 1) & (HID_OUTPUT_FIFO_SIZE - 1); | |
1da177e4 | 339 | |
48b4554a JK |
340 | if (usbhid->outhead != usbhid->outtail) { |
341 | if (hid_submit_out(hid)) { | |
342 | clear_bit(HID_OUT_RUNNING, &usbhid->iofl); | |
343 | wake_up(&hid->wait); | |
344 | } | |
345 | spin_unlock_irqrestore(&usbhid->outlock, flags); | |
346 | return; | |
347 | } | |
1da177e4 | 348 | |
48b4554a JK |
349 | clear_bit(HID_OUT_RUNNING, &usbhid->iofl); |
350 | spin_unlock_irqrestore(&usbhid->outlock, flags); | |
351 | wake_up(&hid->wait); | |
352 | } | |
6345fdfd | 353 | |
48b4554a JK |
354 | /* |
355 | * Control pipe completion handler. | |
356 | */ | |
1da177e4 | 357 | |
48b4554a JK |
358 | static void hid_ctrl(struct urb *urb) |
359 | { | |
360 | struct hid_device *hid = urb->context; | |
361 | struct usbhid_device *usbhid = hid->driver_data; | |
362 | unsigned long flags; | |
363 | int unplug = 0; | |
1da177e4 | 364 | |
48b4554a | 365 | spin_lock_irqsave(&usbhid->ctrllock, flags); |
1da177e4 | 366 | |
48b4554a JK |
367 | switch (urb->status) { |
368 | case 0: /* success */ | |
369 | if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_IN) | |
370 | hid_input_report(urb->context, usbhid->ctrl[usbhid->ctrltail].report->type, | |
371 | urb->transfer_buffer, urb->actual_length, 0); | |
372 | break; | |
373 | case -ESHUTDOWN: /* unplug */ | |
374 | unplug = 1; | |
375 | case -EILSEQ: /* protocol error or unplug */ | |
376 | case -EPROTO: /* protocol error or unplug */ | |
377 | case -ECONNRESET: /* unlink */ | |
378 | case -ENOENT: | |
379 | case -EPIPE: /* report not available */ | |
380 | break; | |
381 | default: /* error */ | |
382 | warn("ctrl urb status %d received", urb->status); | |
383 | } | |
1da177e4 | 384 | |
48b4554a JK |
385 | if (unplug) |
386 | usbhid->ctrltail = usbhid->ctrlhead; | |
387 | else | |
388 | usbhid->ctrltail = (usbhid->ctrltail + 1) & (HID_CONTROL_FIFO_SIZE - 1); | |
1da177e4 | 389 | |
48b4554a JK |
390 | if (usbhid->ctrlhead != usbhid->ctrltail) { |
391 | if (hid_submit_ctrl(hid)) { | |
392 | clear_bit(HID_CTRL_RUNNING, &usbhid->iofl); | |
393 | wake_up(&hid->wait); | |
394 | } | |
395 | spin_unlock_irqrestore(&usbhid->ctrllock, flags); | |
396 | return; | |
397 | } | |
1da177e4 | 398 | |
48b4554a JK |
399 | clear_bit(HID_CTRL_RUNNING, &usbhid->iofl); |
400 | spin_unlock_irqrestore(&usbhid->ctrllock, flags); | |
401 | wake_up(&hid->wait); | |
402 | } | |
1da177e4 | 403 | |
48b4554a JK |
404 | void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir) |
405 | { | |
406 | int head; | |
407 | unsigned long flags; | |
408 | struct usbhid_device *usbhid = hid->driver_data; | |
1da177e4 | 409 | |
48b4554a JK |
410 | if ((hid->quirks & HID_QUIRK_NOGET) && dir == USB_DIR_IN) |
411 | return; | |
b857c651 | 412 | |
48b4554a | 413 | if (usbhid->urbout && dir == USB_DIR_OUT && report->type == HID_OUTPUT_REPORT) { |
1da177e4 | 414 | |
48b4554a | 415 | spin_lock_irqsave(&usbhid->outlock, flags); |
1da177e4 | 416 | |
48b4554a JK |
417 | if ((head = (usbhid->outhead + 1) & (HID_OUTPUT_FIFO_SIZE - 1)) == usbhid->outtail) { |
418 | spin_unlock_irqrestore(&usbhid->outlock, flags); | |
419 | warn("output queue full"); | |
420 | return; | |
421 | } | |
1da177e4 | 422 | |
48b4554a JK |
423 | usbhid->out[usbhid->outhead] = report; |
424 | usbhid->outhead = head; | |
4871d3be | 425 | |
48b4554a JK |
426 | if (!test_and_set_bit(HID_OUT_RUNNING, &usbhid->iofl)) |
427 | if (hid_submit_out(hid)) | |
428 | clear_bit(HID_OUT_RUNNING, &usbhid->iofl); | |
8fd6db47 | 429 | |
48b4554a JK |
430 | spin_unlock_irqrestore(&usbhid->outlock, flags); |
431 | return; | |
432 | } | |
1da177e4 | 433 | |
48b4554a | 434 | spin_lock_irqsave(&usbhid->ctrllock, flags); |
940824b0 | 435 | |
48b4554a JK |
436 | if ((head = (usbhid->ctrlhead + 1) & (HID_CONTROL_FIFO_SIZE - 1)) == usbhid->ctrltail) { |
437 | spin_unlock_irqrestore(&usbhid->ctrllock, flags); | |
438 | warn("control queue full"); | |
439 | return; | |
440 | } | |
8fd80133 | 441 | |
48b4554a JK |
442 | usbhid->ctrl[usbhid->ctrlhead].report = report; |
443 | usbhid->ctrl[usbhid->ctrlhead].dir = dir; | |
444 | usbhid->ctrlhead = head; | |
8fd80133 | 445 | |
48b4554a JK |
446 | if (!test_and_set_bit(HID_CTRL_RUNNING, &usbhid->iofl)) |
447 | if (hid_submit_ctrl(hid)) | |
448 | clear_bit(HID_CTRL_RUNNING, &usbhid->iofl); | |
931e24b9 | 449 | |
48b4554a JK |
450 | spin_unlock_irqrestore(&usbhid->ctrllock, flags); |
451 | } | |
23b0d968 | 452 | |
48b4554a JK |
453 | static int usb_hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) |
454 | { | |
e0712985 | 455 | struct hid_device *hid = input_get_drvdata(dev); |
48b4554a JK |
456 | struct hid_field *field; |
457 | int offset; | |
41ad5fba | 458 | |
48b4554a JK |
459 | if (type == EV_FF) |
460 | return input_ff_event(dev, type, code, value); | |
8d2bad87 | 461 | |
48b4554a JK |
462 | if (type != EV_LED) |
463 | return -1; | |
5556feae | 464 | |
48b4554a JK |
465 | if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) { |
466 | warn("event field not found"); | |
467 | return -1; | |
468 | } | |
4a1a4d8b | 469 | |
48b4554a JK |
470 | hid_set_field(field, offset, value); |
471 | usbhid_submit_report(hid, field->report, USB_DIR_OUT); | |
1da177e4 | 472 | |
48b4554a JK |
473 | return 0; |
474 | } | |
1da177e4 | 475 | |
48b4554a JK |
476 | int usbhid_wait_io(struct hid_device *hid) |
477 | { | |
478 | struct usbhid_device *usbhid = hid->driver_data; | |
25914662 | 479 | |
48b4554a JK |
480 | if (!wait_event_timeout(hid->wait, (!test_bit(HID_CTRL_RUNNING, &usbhid->iofl) && |
481 | !test_bit(HID_OUT_RUNNING, &usbhid->iofl)), | |
482 | 10*HZ)) { | |
58037eb9 | 483 | dbg_hid("timeout waiting for ctrl or out queue to clear\n"); |
48b4554a JK |
484 | return -1; |
485 | } | |
1da177e4 | 486 | |
48b4554a JK |
487 | return 0; |
488 | } | |
53880546 | 489 | |
48b4554a JK |
490 | static int hid_set_idle(struct usb_device *dev, int ifnum, int report, int idle) |
491 | { | |
492 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
493 | HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, (idle << 8) | report, | |
494 | ifnum, NULL, 0, USB_CTRL_SET_TIMEOUT); | |
495 | } | |
1da177e4 | 496 | |
48b4554a JK |
497 | static int hid_get_class_descriptor(struct usb_device *dev, int ifnum, |
498 | unsigned char type, void *buf, int size) | |
499 | { | |
500 | int result, retries = 4; | |
1da177e4 | 501 | |
48b4554a | 502 | memset(buf, 0, size); |
1da177e4 | 503 | |
48b4554a JK |
504 | do { |
505 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
506 | USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN, | |
507 | (type << 8), ifnum, buf, size, USB_CTRL_GET_TIMEOUT); | |
508 | retries--; | |
509 | } while (result < size && retries); | |
510 | return result; | |
511 | } | |
940824b0 | 512 | |
48b4554a JK |
513 | int usbhid_open(struct hid_device *hid) |
514 | { | |
515 | ++hid->open; | |
516 | if (hid_start_in(hid)) | |
517 | hid_io_error(hid); | |
518 | return 0; | |
519 | } | |
a417a21e | 520 | |
48b4554a JK |
521 | void usbhid_close(struct hid_device *hid) |
522 | { | |
523 | struct usbhid_device *usbhid = hid->driver_data; | |
eab9edd2 | 524 | |
48b4554a JK |
525 | if (!--hid->open) |
526 | usb_kill_urb(usbhid->urbin); | |
527 | } | |
1d3e2023 | 528 | |
48b4554a JK |
529 | /* |
530 | * Initialize all reports | |
531 | */ | |
41ad5fba | 532 | |
48b4554a JK |
533 | void usbhid_init_reports(struct hid_device *hid) |
534 | { | |
535 | struct hid_report *report; | |
536 | struct usbhid_device *usbhid = hid->driver_data; | |
537 | int err, ret; | |
41ad5fba | 538 | |
48b4554a JK |
539 | list_for_each_entry(report, &hid->report_enum[HID_INPUT_REPORT].report_list, list) |
540 | usbhid_submit_report(hid, report, USB_DIR_IN); | |
5556feae | 541 | |
48b4554a JK |
542 | list_for_each_entry(report, &hid->report_enum[HID_FEATURE_REPORT].report_list, list) |
543 | usbhid_submit_report(hid, report, USB_DIR_IN); | |
4a1a4d8b | 544 | |
48b4554a JK |
545 | err = 0; |
546 | ret = usbhid_wait_io(hid); | |
547 | while (ret) { | |
548 | err |= ret; | |
549 | if (test_bit(HID_CTRL_RUNNING, &usbhid->iofl)) | |
550 | usb_kill_urb(usbhid->urbctrl); | |
551 | if (test_bit(HID_OUT_RUNNING, &usbhid->iofl)) | |
552 | usb_kill_urb(usbhid->urbout); | |
553 | ret = usbhid_wait_io(hid); | |
554 | } | |
3f9b4076 | 555 | |
48b4554a JK |
556 | if (err) |
557 | warn("timeout initializing reports"); | |
558 | } | |
1da177e4 | 559 | |
713c8aad PZ |
560 | /* |
561 | * Reset LEDs which BIOS might have left on. For now, just NumLock (0x01). | |
562 | */ | |
563 | static int hid_find_field_early(struct hid_device *hid, unsigned int page, | |
564 | unsigned int hid_code, struct hid_field **pfield) | |
565 | { | |
566 | struct hid_report *report; | |
567 | struct hid_field *field; | |
568 | struct hid_usage *usage; | |
569 | int i, j; | |
570 | ||
571 | list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) { | |
572 | for (i = 0; i < report->maxfield; i++) { | |
573 | field = report->field[i]; | |
574 | for (j = 0; j < field->maxusage; j++) { | |
575 | usage = &field->usage[j]; | |
576 | if ((usage->hid & HID_USAGE_PAGE) == page && | |
577 | (usage->hid & 0xFFFF) == hid_code) { | |
578 | *pfield = field; | |
579 | return j; | |
580 | } | |
581 | } | |
582 | } | |
583 | } | |
584 | return -1; | |
585 | } | |
586 | ||
587 | static void usbhid_set_leds(struct hid_device *hid) | |
588 | { | |
589 | struct hid_field *field; | |
590 | int offset; | |
591 | ||
592 | if ((offset = hid_find_field_early(hid, HID_UP_LED, 0x01, &field)) != -1) { | |
593 | hid_set_field(field, offset, 0); | |
594 | usbhid_submit_report(hid, field->report, USB_DIR_OUT); | |
595 | } | |
596 | } | |
597 | ||
bf0964dc MH |
598 | /* |
599 | * Traverse the supplied list of reports and find the longest | |
600 | */ | |
601 | static void hid_find_max_report(struct hid_device *hid, unsigned int type, int *max) | |
602 | { | |
603 | struct hid_report *report; | |
604 | int size; | |
605 | ||
606 | list_for_each_entry(report, &hid->report_enum[type].report_list, list) { | |
607 | size = ((report->size - 1) >> 3) + 1; | |
608 | if (type == HID_INPUT_REPORT && hid->report_enum[type].numbered) | |
609 | size++; | |
610 | if (*max < size) | |
611 | *max = size; | |
612 | } | |
613 | } | |
614 | ||
1da177e4 LT |
615 | static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid) |
616 | { | |
4916b3a5 JK |
617 | struct usbhid_device *usbhid = hid->driver_data; |
618 | ||
619 | if (!(usbhid->inbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_ATOMIC, &usbhid->inbuf_dma))) | |
1da177e4 | 620 | return -1; |
4916b3a5 | 621 | if (!(usbhid->outbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_ATOMIC, &usbhid->outbuf_dma))) |
1da177e4 | 622 | return -1; |
4916b3a5 | 623 | if (!(usbhid->cr = usb_buffer_alloc(dev, sizeof(*(usbhid->cr)), GFP_ATOMIC, &usbhid->cr_dma))) |
1da177e4 | 624 | return -1; |
4916b3a5 | 625 | if (!(usbhid->ctrlbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_ATOMIC, &usbhid->ctrlbuf_dma))) |
1da177e4 LT |
626 | return -1; |
627 | ||
628 | return 0; | |
629 | } | |
630 | ||
efc493f9 JK |
631 | static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t count) |
632 | { | |
633 | struct usbhid_device *usbhid = hid->driver_data; | |
634 | struct usb_device *dev = hid_to_usb_dev(hid); | |
635 | struct usb_interface *intf = usbhid->intf; | |
636 | struct usb_host_interface *interface = intf->cur_altsetting; | |
637 | int ret; | |
638 | ||
639 | ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
640 | HID_REQ_SET_REPORT, | |
641 | USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
642 | cpu_to_le16(((HID_OUTPUT_REPORT + 1) << 8) | *buf), | |
643 | interface->desc.bInterfaceNumber, buf + 1, count - 1, | |
644 | USB_CTRL_SET_TIMEOUT); | |
645 | ||
646 | /* count also the report id */ | |
647 | if (ret > 0) | |
648 | ret++; | |
649 | ||
650 | return ret; | |
651 | } | |
652 | ||
1da177e4 LT |
653 | static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid) |
654 | { | |
4916b3a5 JK |
655 | struct usbhid_device *usbhid = hid->driver_data; |
656 | ||
6675c5bd DT |
657 | usb_buffer_free(dev, usbhid->bufsize, usbhid->inbuf, usbhid->inbuf_dma); |
658 | usb_buffer_free(dev, usbhid->bufsize, usbhid->outbuf, usbhid->outbuf_dma); | |
659 | usb_buffer_free(dev, sizeof(*(usbhid->cr)), usbhid->cr, usbhid->cr_dma); | |
660 | usb_buffer_free(dev, usbhid->bufsize, usbhid->ctrlbuf, usbhid->ctrlbuf_dma); | |
1da177e4 LT |
661 | } |
662 | ||
4a1a4d8b GL |
663 | /* |
664 | * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller | |
665 | * to "operational". Without this, the ps3 controller will not report any | |
666 | * events. | |
667 | */ | |
668 | static void hid_fixup_sony_ps3_controller(struct usb_device *dev, int ifnum) | |
669 | { | |
670 | int result; | |
671 | char *buf = kmalloc(18, GFP_KERNEL); | |
672 | ||
673 | if (!buf) | |
674 | return; | |
675 | ||
676 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
677 | HID_REQ_GET_REPORT, | |
678 | USB_DIR_IN | USB_TYPE_CLASS | | |
679 | USB_RECIP_INTERFACE, | |
680 | (3 << 8) | 0xf2, ifnum, buf, 17, | |
681 | USB_CTRL_GET_TIMEOUT); | |
682 | ||
683 | if (result < 0) | |
58037eb9 | 684 | err_hid("%s failed: %d\n", __func__, result); |
4a1a4d8b GL |
685 | |
686 | kfree(buf); | |
687 | } | |
688 | ||
1da177e4 LT |
689 | static struct hid_device *usb_hid_configure(struct usb_interface *intf) |
690 | { | |
691 | struct usb_host_interface *interface = intf->cur_altsetting; | |
692 | struct usb_device *dev = interface_to_usbdev (intf); | |
693 | struct hid_descriptor *hdesc; | |
694 | struct hid_device *hid; | |
2eb5dc30 | 695 | u32 quirks = 0; |
4cbe7d28 | 696 | unsigned rsize = 0; |
c5b7c7c3 DT |
697 | char *rdesc; |
698 | int n, len, insize = 0; | |
4916b3a5 | 699 | struct usbhid_device *usbhid; |
1da177e4 | 700 | |
2eb5dc30 PW |
701 | quirks = usbhid_lookup_quirk(le16_to_cpu(dev->descriptor.idVendor), |
702 | le16_to_cpu(dev->descriptor.idProduct)); | |
1da177e4 | 703 | |
0f28b55d AS |
704 | /* Many keyboards and mice don't like to be polled for reports, |
705 | * so we will always set the HID_QUIRK_NOGET flag for them. */ | |
706 | if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT) { | |
707 | if (interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_KEYBOARD || | |
708 | interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_MOUSE) | |
709 | quirks |= HID_QUIRK_NOGET; | |
710 | } | |
711 | ||
1da177e4 LT |
712 | if (quirks & HID_QUIRK_IGNORE) |
713 | return NULL; | |
714 | ||
a417a21e SS |
715 | if ((quirks & HID_QUIRK_IGNORE_MOUSE) && |
716 | (interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_MOUSE)) | |
717 | return NULL; | |
718 | ||
719 | ||
c5b7c7c3 DT |
720 | if (usb_get_extra_descriptor(interface, HID_DT_HID, &hdesc) && |
721 | (!interface->desc.bNumEndpoints || | |
722 | usb_get_extra_descriptor(&interface->endpoint[0], HID_DT_HID, &hdesc))) { | |
58037eb9 | 723 | dbg_hid("class descriptor not present\n"); |
c5b7c7c3 | 724 | return NULL; |
1da177e4 LT |
725 | } |
726 | ||
727 | for (n = 0; n < hdesc->bNumDescriptors; n++) | |
728 | if (hdesc->desc[n].bDescriptorType == HID_DT_REPORT) | |
729 | rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength); | |
730 | ||
731 | if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) { | |
58037eb9 | 732 | dbg_hid("weird size of report descriptor (%u)\n", rsize); |
1da177e4 LT |
733 | return NULL; |
734 | } | |
735 | ||
736 | if (!(rdesc = kmalloc(rsize, GFP_KERNEL))) { | |
58037eb9 | 737 | dbg_hid("couldn't allocate rdesc memory\n"); |
1da177e4 LT |
738 | return NULL; |
739 | } | |
740 | ||
854561b0 VP |
741 | hid_set_idle(dev, interface->desc.bInterfaceNumber, 0, 0); |
742 | ||
1da177e4 | 743 | if ((n = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, HID_DT_REPORT, rdesc, rsize)) < 0) { |
58037eb9 | 744 | dbg_hid("reading report descriptor failed\n"); |
1da177e4 LT |
745 | kfree(rdesc); |
746 | return NULL; | |
747 | } | |
748 | ||
ea9a4a8b JK |
749 | usbhid_fixup_report_descriptor(le16_to_cpu(dev->descriptor.idVendor), |
750 | le16_to_cpu(dev->descriptor.idProduct), rdesc, | |
751 | rsize, rdesc_quirks_param); | |
66da8769 | 752 | |
58037eb9 | 753 | dbg_hid("report descriptor (size %u, read %d) = ", rsize, n); |
1da177e4 | 754 | for (n = 0; n < rsize; n++) |
58037eb9 JK |
755 | dbg_hid_line(" %02x", (unsigned char) rdesc[n]); |
756 | dbg_hid_line("\n"); | |
1da177e4 LT |
757 | |
758 | if (!(hid = hid_parse_report(rdesc, n))) { | |
58037eb9 | 759 | dbg_hid("parsing report descriptor failed\n"); |
1da177e4 LT |
760 | kfree(rdesc); |
761 | return NULL; | |
762 | } | |
763 | ||
764 | kfree(rdesc); | |
765 | hid->quirks = quirks; | |
766 | ||
4916b3a5 | 767 | if (!(usbhid = kzalloc(sizeof(struct usbhid_device), GFP_KERNEL))) |
de1a7b03 | 768 | goto fail_no_usbhid; |
4916b3a5 JK |
769 | |
770 | hid->driver_data = usbhid; | |
771 | usbhid->hid = hid; | |
772 | ||
773 | usbhid->bufsize = HID_MIN_BUFFER_SIZE; | |
774 | hid_find_max_report(hid, HID_INPUT_REPORT, &usbhid->bufsize); | |
775 | hid_find_max_report(hid, HID_OUTPUT_REPORT, &usbhid->bufsize); | |
776 | hid_find_max_report(hid, HID_FEATURE_REPORT, &usbhid->bufsize); | |
bf0964dc | 777 | |
4916b3a5 JK |
778 | if (usbhid->bufsize > HID_MAX_BUFFER_SIZE) |
779 | usbhid->bufsize = HID_MAX_BUFFER_SIZE; | |
bf0964dc MH |
780 | |
781 | hid_find_max_report(hid, HID_INPUT_REPORT, &insize); | |
782 | ||
783 | if (insize > HID_MAX_BUFFER_SIZE) | |
784 | insize = HID_MAX_BUFFER_SIZE; | |
785 | ||
1da177e4 LT |
786 | if (hid_alloc_buffers(dev, hid)) { |
787 | hid_free_buffers(dev, hid); | |
788 | goto fail; | |
789 | } | |
790 | ||
791 | for (n = 0; n < interface->desc.bNumEndpoints; n++) { | |
792 | ||
793 | struct usb_endpoint_descriptor *endpoint; | |
794 | int pipe; | |
795 | int interval; | |
796 | ||
797 | endpoint = &interface->endpoint[n].desc; | |
798 | if ((endpoint->bmAttributes & 3) != 3) /* Not an interrupt endpoint */ | |
799 | continue; | |
800 | ||
1da177e4 | 801 | interval = endpoint->bInterval; |
1da177e4 LT |
802 | |
803 | /* Change the polling interval of mice. */ | |
804 | if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0) | |
805 | interval = hid_mousepoll_interval; | |
05f091ab | 806 | |
0f12aa03 | 807 | if (usb_endpoint_dir_in(endpoint)) { |
4916b3a5 | 808 | if (usbhid->urbin) |
1da177e4 | 809 | continue; |
4916b3a5 | 810 | if (!(usbhid->urbin = usb_alloc_urb(0, GFP_KERNEL))) |
1da177e4 LT |
811 | goto fail; |
812 | pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); | |
4916b3a5 | 813 | usb_fill_int_urb(usbhid->urbin, dev, pipe, usbhid->inbuf, insize, |
1da177e4 | 814 | hid_irq_in, hid, interval); |
4916b3a5 JK |
815 | usbhid->urbin->transfer_dma = usbhid->inbuf_dma; |
816 | usbhid->urbin->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1da177e4 | 817 | } else { |
4916b3a5 | 818 | if (usbhid->urbout) |
1da177e4 | 819 | continue; |
4916b3a5 | 820 | if (!(usbhid->urbout = usb_alloc_urb(0, GFP_KERNEL))) |
1da177e4 LT |
821 | goto fail; |
822 | pipe = usb_sndintpipe(dev, endpoint->bEndpointAddress); | |
4916b3a5 | 823 | usb_fill_int_urb(usbhid->urbout, dev, pipe, usbhid->outbuf, 0, |
1da177e4 | 824 | hid_irq_out, hid, interval); |
4916b3a5 JK |
825 | usbhid->urbout->transfer_dma = usbhid->outbuf_dma; |
826 | usbhid->urbout->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1da177e4 LT |
827 | } |
828 | } | |
829 | ||
4916b3a5 | 830 | if (!usbhid->urbin) { |
58037eb9 | 831 | err_hid("couldn't find an input interrupt endpoint"); |
1da177e4 LT |
832 | goto fail; |
833 | } | |
834 | ||
835 | init_waitqueue_head(&hid->wait); | |
836 | ||
4916b3a5 JK |
837 | INIT_WORK(&usbhid->reset_work, hid_reset); |
838 | setup_timer(&usbhid->io_retry, hid_retry_timeout, (unsigned long) hid); | |
aef4e266 | 839 | |
4916b3a5 JK |
840 | spin_lock_init(&usbhid->inlock); |
841 | spin_lock_init(&usbhid->outlock); | |
842 | spin_lock_init(&usbhid->ctrllock); | |
1da177e4 LT |
843 | |
844 | hid->version = le16_to_cpu(hdesc->bcdHID); | |
845 | hid->country = hdesc->bCountryCode; | |
be820975 | 846 | hid->dev = &intf->dev; |
4916b3a5 JK |
847 | usbhid->intf = intf; |
848 | usbhid->ifnum = interface->desc.bInterfaceNumber; | |
1da177e4 LT |
849 | |
850 | hid->name[0] = 0; | |
851 | ||
c5b7c7c3 DT |
852 | if (dev->manufacturer) |
853 | strlcpy(hid->name, dev->manufacturer, sizeof(hid->name)); | |
854 | ||
855 | if (dev->product) { | |
856 | if (dev->manufacturer) | |
857 | strlcat(hid->name, " ", sizeof(hid->name)); | |
858 | strlcat(hid->name, dev->product, sizeof(hid->name)); | |
859 | } | |
860 | ||
861 | if (!strlen(hid->name)) | |
862 | snprintf(hid->name, sizeof(hid->name), "HID %04x:%04x", | |
863 | le16_to_cpu(dev->descriptor.idVendor), | |
864 | le16_to_cpu(dev->descriptor.idProduct)); | |
1da177e4 | 865 | |
229695e5 | 866 | hid->bus = BUS_USB; |
9fa2ad5f JB |
867 | hid->vendor = le16_to_cpu(dev->descriptor.idVendor); |
868 | hid->product = le16_to_cpu(dev->descriptor.idProduct); | |
229695e5 | 869 | |
c5b7c7c3 DT |
870 | usb_make_path(dev, hid->phys, sizeof(hid->phys)); |
871 | strlcat(hid->phys, "/input", sizeof(hid->phys)); | |
872 | len = strlen(hid->phys); | |
873 | if (len < sizeof(hid->phys) - 1) | |
874 | snprintf(hid->phys + len, sizeof(hid->phys) - len, | |
875 | "%d", intf->altsetting[0].desc.bInterfaceNumber); | |
1da177e4 LT |
876 | |
877 | if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0) | |
878 | hid->uniq[0] = 0; | |
879 | ||
4916b3a5 JK |
880 | usbhid->urbctrl = usb_alloc_urb(0, GFP_KERNEL); |
881 | if (!usbhid->urbctrl) | |
1da177e4 | 882 | goto fail; |
c5b7c7c3 | 883 | |
4916b3a5 JK |
884 | usb_fill_control_urb(usbhid->urbctrl, dev, 0, (void *) usbhid->cr, |
885 | usbhid->ctrlbuf, 1, hid_ctrl, hid); | |
886 | usbhid->urbctrl->setup_dma = usbhid->cr_dma; | |
887 | usbhid->urbctrl->transfer_dma = usbhid->ctrlbuf_dma; | |
888 | usbhid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP); | |
229695e5 | 889 | hid->hidinput_input_event = usb_hidinput_input_event; |
7c379146 JK |
890 | hid->hid_open = usbhid_open; |
891 | hid->hid_close = usbhid_close; | |
aa938f79 JK |
892 | #ifdef CONFIG_USB_HIDDEV |
893 | hid->hiddev_hid_event = hiddev_hid_event; | |
aa8de2f0 | 894 | hid->hiddev_report_event = hiddev_report_event; |
aa938f79 | 895 | #endif |
efc493f9 | 896 | hid->hid_output_raw_report = usbhid_output_raw_report; |
1da177e4 LT |
897 | return hid; |
898 | ||
899 | fail: | |
4916b3a5 JK |
900 | usb_free_urb(usbhid->urbin); |
901 | usb_free_urb(usbhid->urbout); | |
902 | usb_free_urb(usbhid->urbctrl); | |
22f675f3 | 903 | hid_free_buffers(dev, hid); |
cda5ecf8 | 904 | kfree(usbhid); |
de1a7b03 | 905 | fail_no_usbhid: |
1da177e4 LT |
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); |
2fa45a4c | 929 | cancel_work_sync(&usbhid->reset_work); |
aef4e266 | 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); |
22f675f3 | 941 | kfree(usbhid); |
1da177e4 LT |
942 | hid_free_device(hid); |
943 | } | |
944 | ||
945 | static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
946 | { | |
947 | struct hid_device *hid; | |
948 | char path[64]; | |
949 | int i; | |
950 | char *c; | |
951 | ||
58037eb9 | 952 | dbg_hid("HID probe called for ifnum %d\n", |
1da177e4 LT |
953 | intf->altsetting->desc.bInterfaceNumber); |
954 | ||
955 | if (!(hid = usb_hid_configure(intf))) | |
479f6ea8 | 956 | return -ENODEV; |
1da177e4 | 957 | |
4916b3a5 | 958 | usbhid_init_reports(hid); |
1da177e4 | 959 | hid_dump_device(hid); |
713c8aad PZ |
960 | if (hid->quirks & HID_QUIRK_RESET_LEDS) |
961 | usbhid_set_leds(hid); | |
1da177e4 LT |
962 | |
963 | if (!hidinput_connect(hid)) | |
964 | hid->claimed |= HID_CLAIMED_INPUT; | |
965 | if (!hiddev_connect(hid)) | |
966 | hid->claimed |= HID_CLAIMED_HIDDEV; | |
967 | ||
968 | usb_set_intfdata(intf, hid); | |
969 | ||
970 | if (!hid->claimed) { | |
971 | printk ("HID device not claimed by input or hiddev\n"); | |
972 | hid_disconnect(intf); | |
479f6ea8 | 973 | return -ENODEV; |
1da177e4 LT |
974 | } |
975 | ||
c4146067 | 976 | if ((hid->claimed & HID_CLAIMED_INPUT)) |
4916b3a5 JK |
977 | hid_ff_init(hid); |
978 | ||
4a1a4d8b GL |
979 | if (hid->quirks & HID_QUIRK_SONY_PS3_CONTROLLER) |
980 | hid_fixup_sony_ps3_controller(interface_to_usbdev(intf), | |
981 | intf->cur_altsetting->desc.bInterfaceNumber); | |
982 | ||
1da177e4 LT |
983 | printk(KERN_INFO); |
984 | ||
985 | if (hid->claimed & HID_CLAIMED_INPUT) | |
986 | printk("input"); | |
987 | if (hid->claimed == (HID_CLAIMED_INPUT | HID_CLAIMED_HIDDEV)) | |
988 | printk(","); | |
989 | if (hid->claimed & HID_CLAIMED_HIDDEV) | |
990 | printk("hiddev%d", hid->minor); | |
991 | ||
992 | c = "Device"; | |
993 | for (i = 0; i < hid->maxcollection; i++) { | |
994 | if (hid->collection[i].type == HID_COLLECTION_APPLICATION && | |
995 | (hid->collection[i].usage & HID_USAGE_PAGE) == HID_UP_GENDESK && | |
996 | (hid->collection[i].usage & 0xffff) < ARRAY_SIZE(hid_types)) { | |
997 | c = hid_types[hid->collection[i].usage & 0xffff]; | |
998 | break; | |
999 | } | |
1000 | } | |
1001 | ||
1002 | usb_make_path(interface_to_usbdev(intf), path, 63); | |
1003 | ||
1004 | printk(": USB HID v%x.%02x %s [%s] on %s\n", | |
1005 | hid->version >> 8, hid->version & 0xff, c, hid->name, path); | |
1006 | ||
1007 | return 0; | |
1008 | } | |
1009 | ||
27d72e85 | 1010 | static int hid_suspend(struct usb_interface *intf, pm_message_t message) |
1da177e4 LT |
1011 | { |
1012 | struct hid_device *hid = usb_get_intfdata (intf); | |
4916b3a5 | 1013 | struct usbhid_device *usbhid = hid->driver_data; |
1da177e4 | 1014 | |
4916b3a5 JK |
1015 | spin_lock_irq(&usbhid->inlock); /* Sync with error handler */ |
1016 | set_bit(HID_SUSPENDED, &usbhid->iofl); | |
1017 | spin_unlock_irq(&usbhid->inlock); | |
1018 | del_timer(&usbhid->io_retry); | |
1019 | usb_kill_urb(usbhid->urbin); | |
1da177e4 LT |
1020 | dev_dbg(&intf->dev, "suspend\n"); |
1021 | return 0; | |
1022 | } | |
1023 | ||
1024 | static int hid_resume(struct usb_interface *intf) | |
1025 | { | |
1026 | struct hid_device *hid = usb_get_intfdata (intf); | |
4916b3a5 | 1027 | struct usbhid_device *usbhid = hid->driver_data; |
1da177e4 LT |
1028 | int status; |
1029 | ||
4916b3a5 JK |
1030 | clear_bit(HID_SUSPENDED, &usbhid->iofl); |
1031 | usbhid->retry_delay = 0; | |
aef4e266 | 1032 | status = hid_start_in(hid); |
1da177e4 LT |
1033 | dev_dbg(&intf->dev, "resume status %d\n", status); |
1034 | return status; | |
1035 | } | |
1036 | ||
df9a1f48 | 1037 | /* Treat USB reset pretty much the same as suspend/resume */ |
f07600cf | 1038 | static int hid_pre_reset(struct usb_interface *intf) |
df9a1f48 AS |
1039 | { |
1040 | /* FIXME: What if the interface is already suspended? */ | |
1041 | hid_suspend(intf, PMSG_ON); | |
f07600cf | 1042 | return 0; |
df9a1f48 AS |
1043 | } |
1044 | ||
f07600cf AS |
1045 | /* Same routine used for post_reset and reset_resume */ |
1046 | static int hid_post_reset(struct usb_interface *intf) | |
df9a1f48 AS |
1047 | { |
1048 | struct usb_device *dev = interface_to_usbdev (intf); | |
1049 | ||
1050 | hid_set_idle(dev, intf->cur_altsetting->desc.bInterfaceNumber, 0, 0); | |
1051 | /* FIXME: Any more reinitialization needed? */ | |
1052 | ||
f07600cf | 1053 | return hid_resume(intf); |
df9a1f48 AS |
1054 | } |
1055 | ||
1da177e4 LT |
1056 | static struct usb_device_id hid_usb_ids [] = { |
1057 | { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS, | |
1058 | .bInterfaceClass = USB_INTERFACE_CLASS_HID }, | |
1059 | { } /* Terminating entry */ | |
1060 | }; | |
1061 | ||
1062 | MODULE_DEVICE_TABLE (usb, hid_usb_ids); | |
1063 | ||
1064 | static struct usb_driver hid_driver = { | |
1da177e4 LT |
1065 | .name = "usbhid", |
1066 | .probe = hid_probe, | |
1067 | .disconnect = hid_disconnect, | |
1068 | .suspend = hid_suspend, | |
1069 | .resume = hid_resume, | |
f07600cf | 1070 | .reset_resume = hid_post_reset, |
df9a1f48 AS |
1071 | .pre_reset = hid_pre_reset, |
1072 | .post_reset = hid_post_reset, | |
1da177e4 LT |
1073 | .id_table = hid_usb_ids, |
1074 | }; | |
1075 | ||
1076 | static int __init hid_init(void) | |
1077 | { | |
1078 | int retval; | |
876b9276 PW |
1079 | retval = usbhid_quirks_init(quirks_param); |
1080 | if (retval) | |
1081 | goto usbhid_quirks_init_fail; | |
1da177e4 LT |
1082 | retval = hiddev_init(); |
1083 | if (retval) | |
1084 | goto hiddev_init_fail; | |
1085 | retval = usb_register(&hid_driver); | |
1086 | if (retval) | |
1087 | goto usb_register_fail; | |
1088 | info(DRIVER_VERSION ":" DRIVER_DESC); | |
1089 | ||
1090 | return 0; | |
1091 | usb_register_fail: | |
1092 | hiddev_exit(); | |
1093 | hiddev_init_fail: | |
876b9276 PW |
1094 | usbhid_quirks_exit(); |
1095 | usbhid_quirks_init_fail: | |
1da177e4 LT |
1096 | return retval; |
1097 | } | |
1098 | ||
1099 | static void __exit hid_exit(void) | |
1100 | { | |
1101 | usb_deregister(&hid_driver); | |
1102 | hiddev_exit(); | |
876b9276 | 1103 | usbhid_quirks_exit(); |
1da177e4 LT |
1104 | } |
1105 | ||
1106 | module_init(hid_init); | |
1107 | module_exit(hid_exit); | |
1108 | ||
1109 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
1110 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1111 | MODULE_LICENSE(DRIVER_LICENSE); |