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authorJiri Kosina <jkosina@suse.cz>2009-03-30 09:14:53 -0400
committerJiri Kosina <jkosina@suse.cz>2009-03-30 09:14:53 -0400
commit621de593081524da2f0f7b060f5951b4155eb4a2 (patch)
treedcb1777094498496a3036b0e49546887e72d6a06 /drivers/hid/usbhid
parentafa5eb7c68689ced4284f01c96feed44a2d0a127 (diff)
parent6d77976800c3f29a0337fadcc9ddd79050fa5620 (diff)
Merge branch 'autosuspend' into for-next
Conflicts: drivers/hid/hid-core.c
Diffstat (limited to 'drivers/hid/usbhid')
-rw-r--r--drivers/hid/usbhid/hid-core.c472
-rw-r--r--drivers/hid/usbhid/hiddev.c17
-rw-r--r--drivers/hid/usbhid/usbhid.h14
3 files changed, 392 insertions, 111 deletions
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index eed05a3017e5..4306cb1b8ce5 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -5,6 +5,7 @@
5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> 5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc 6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
7 * Copyright (c) 2006-2008 Jiri Kosina 7 * Copyright (c) 2006-2008 Jiri Kosina
8 * Copyright (c) 2007-2008 Oliver Neukum
8 */ 9 */
9 10
10/* 11/*
@@ -27,6 +28,7 @@
27#include <asm/byteorder.h> 28#include <asm/byteorder.h>
28#include <linux/input.h> 29#include <linux/input.h>
29#include <linux/wait.h> 30#include <linux/wait.h>
31#include <linux/workqueue.h>
30 32
31#include <linux/usb.h> 33#include <linux/usb.h>
32 34
@@ -53,6 +55,10 @@ static unsigned int hid_mousepoll_interval;
53module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644); 55module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
54MODULE_PARM_DESC(mousepoll, "Polling interval of mice"); 56MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
55 57
58static unsigned int ignoreled;
59module_param_named(ignoreled, ignoreled, uint, 0644);
60MODULE_PARM_DESC(ignoreled, "Autosuspend with active leds");
61
56/* Quirks specified at module load time */ 62/* Quirks specified at module load time */
57static char *quirks_param[MAX_USBHID_BOOT_QUIRKS] = { [ 0 ... (MAX_USBHID_BOOT_QUIRKS - 1) ] = NULL }; 63static char *quirks_param[MAX_USBHID_BOOT_QUIRKS] = { [ 0 ... (MAX_USBHID_BOOT_QUIRKS - 1) ] = NULL };
58module_param_array_named(quirks, quirks_param, charp, NULL, 0444); 64module_param_array_named(quirks, quirks_param, charp, NULL, 0444);
@@ -63,8 +69,13 @@ MODULE_PARM_DESC(quirks, "Add/modify USB HID quirks by specifying "
63/* 69/*
64 * Input submission and I/O error handler. 70 * Input submission and I/O error handler.
65 */ 71 */
72static DEFINE_MUTEX(hid_open_mut);
73static struct workqueue_struct *resumption_waker;
66 74
67static void hid_io_error(struct hid_device *hid); 75static void hid_io_error(struct hid_device *hid);
76static int hid_submit_out(struct hid_device *hid);
77static int hid_submit_ctrl(struct hid_device *hid);
78static void hid_cancel_delayed_stuff(struct usbhid_device *usbhid);
68 79
69/* Start up the input URB */ 80/* Start up the input URB */
70static int hid_start_in(struct hid_device *hid) 81static int hid_start_in(struct hid_device *hid)
@@ -73,15 +84,16 @@ static int hid_start_in(struct hid_device *hid)
73 int rc = 0; 84 int rc = 0;
74 struct usbhid_device *usbhid = hid->driver_data; 85 struct usbhid_device *usbhid = hid->driver_data;
75 86
76 spin_lock_irqsave(&usbhid->inlock, flags); 87 spin_lock_irqsave(&usbhid->lock, flags);
77 if (hid->open > 0 && !test_bit(HID_SUSPENDED, &usbhid->iofl) && 88 if (hid->open > 0 &&
78 !test_bit(HID_DISCONNECTED, &usbhid->iofl) && 89 !test_bit(HID_DISCONNECTED, &usbhid->iofl) &&
90 !test_bit(HID_REPORTED_IDLE, &usbhid->iofl) &&
79 !test_and_set_bit(HID_IN_RUNNING, &usbhid->iofl)) { 91 !test_and_set_bit(HID_IN_RUNNING, &usbhid->iofl)) {
80 rc = usb_submit_urb(usbhid->urbin, GFP_ATOMIC); 92 rc = usb_submit_urb(usbhid->urbin, GFP_ATOMIC);
81 if (rc != 0) 93 if (rc != 0)
82 clear_bit(HID_IN_RUNNING, &usbhid->iofl); 94 clear_bit(HID_IN_RUNNING, &usbhid->iofl);
83 } 95 }
84 spin_unlock_irqrestore(&usbhid->inlock, flags); 96 spin_unlock_irqrestore(&usbhid->lock, flags);
85 return rc; 97 return rc;
86} 98}
87 99
@@ -145,7 +157,7 @@ static void hid_io_error(struct hid_device *hid)
145 unsigned long flags; 157 unsigned long flags;
146 struct usbhid_device *usbhid = hid->driver_data; 158 struct usbhid_device *usbhid = hid->driver_data;
147 159
148 spin_lock_irqsave(&usbhid->inlock, flags); 160 spin_lock_irqsave(&usbhid->lock, flags);
149 161
150 /* Stop when disconnected */ 162 /* Stop when disconnected */
151 if (test_bit(HID_DISCONNECTED, &usbhid->iofl)) 163 if (test_bit(HID_DISCONNECTED, &usbhid->iofl))
@@ -175,7 +187,51 @@ static void hid_io_error(struct hid_device *hid)
175 mod_timer(&usbhid->io_retry, 187 mod_timer(&usbhid->io_retry,
176 jiffies + msecs_to_jiffies(usbhid->retry_delay)); 188 jiffies + msecs_to_jiffies(usbhid->retry_delay));
177done: 189done:
178 spin_unlock_irqrestore(&usbhid->inlock, flags); 190 spin_unlock_irqrestore(&usbhid->lock, flags);
191}
192
193static void usbhid_mark_busy(struct usbhid_device *usbhid)
194{
195 struct usb_interface *intf = usbhid->intf;
196
197 usb_mark_last_busy(interface_to_usbdev(intf));
198}
199
200static int usbhid_restart_out_queue(struct usbhid_device *usbhid)
201{
202 struct hid_device *hid = usb_get_intfdata(usbhid->intf);
203 int kicked;
204
205 if (!hid)
206 return 0;
207
208 if ((kicked = (usbhid->outhead != usbhid->outtail))) {
209 dbg("Kicking head %d tail %d", usbhid->outhead, usbhid->outtail);
210 if (hid_submit_out(hid)) {
211 clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
212 wake_up(&usbhid->wait);
213 }
214 }
215 return kicked;
216}
217
218static int usbhid_restart_ctrl_queue(struct usbhid_device *usbhid)
219{
220 struct hid_device *hid = usb_get_intfdata(usbhid->intf);
221 int kicked;
222
223 WARN_ON(hid == NULL);
224 if (!hid)
225 return 0;
226
227 if ((kicked = (usbhid->ctrlhead != usbhid->ctrltail))) {
228 dbg("Kicking head %d tail %d", usbhid->ctrlhead, usbhid->ctrltail);
229 if (hid_submit_ctrl(hid)) {
230 clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
231 wake_up(&usbhid->wait);
232 }
233 }
234 return kicked;
179} 235}
180 236
181/* 237/*
@@ -190,12 +246,23 @@ static void hid_irq_in(struct urb *urb)
190 246
191 switch (urb->status) { 247 switch (urb->status) {
192 case 0: /* success */ 248 case 0: /* success */
249 usbhid_mark_busy(usbhid);
193 usbhid->retry_delay = 0; 250 usbhid->retry_delay = 0;
194 hid_input_report(urb->context, HID_INPUT_REPORT, 251 hid_input_report(urb->context, HID_INPUT_REPORT,
195 urb->transfer_buffer, 252 urb->transfer_buffer,
196 urb->actual_length, 1); 253 urb->actual_length, 1);
254 /*
255 * autosuspend refused while keys are pressed
256 * because most keyboards don't wake up when
257 * a key is released
258 */
259 if (hid_check_keys_pressed(hid))
260 set_bit(HID_KEYS_PRESSED, &usbhid->iofl);
261 else
262 clear_bit(HID_KEYS_PRESSED, &usbhid->iofl);
197 break; 263 break;
198 case -EPIPE: /* stall */ 264 case -EPIPE: /* stall */
265 usbhid_mark_busy(usbhid);
199 clear_bit(HID_IN_RUNNING, &usbhid->iofl); 266 clear_bit(HID_IN_RUNNING, &usbhid->iofl);
200 set_bit(HID_CLEAR_HALT, &usbhid->iofl); 267 set_bit(HID_CLEAR_HALT, &usbhid->iofl);
201 schedule_work(&usbhid->reset_work); 268 schedule_work(&usbhid->reset_work);
@@ -209,6 +276,7 @@ static void hid_irq_in(struct urb *urb)
209 case -EPROTO: /* protocol error or unplug */ 276 case -EPROTO: /* protocol error or unplug */
210 case -ETIME: /* protocol error or unplug */ 277 case -ETIME: /* protocol error or unplug */
211 case -ETIMEDOUT: /* Should never happen, but... */ 278 case -ETIMEDOUT: /* Should never happen, but... */
279 usbhid_mark_busy(usbhid);
212 clear_bit(HID_IN_RUNNING, &usbhid->iofl); 280 clear_bit(HID_IN_RUNNING, &usbhid->iofl);
213 hid_io_error(hid); 281 hid_io_error(hid);
214 return; 282 return;
@@ -239,16 +307,25 @@ static int hid_submit_out(struct hid_device *hid)
239 report = usbhid->out[usbhid->outtail].report; 307 report = usbhid->out[usbhid->outtail].report;
240 raw_report = usbhid->out[usbhid->outtail].raw_report; 308 raw_report = usbhid->out[usbhid->outtail].raw_report;
241 309
242 usbhid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) + 1 + (report->id > 0); 310 if (!test_bit(HID_REPORTED_IDLE, &usbhid->iofl)) {
243 usbhid->urbout->dev = hid_to_usb_dev(hid); 311 usbhid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) + 1 + (report->id > 0);
244 memcpy(usbhid->outbuf, raw_report, usbhid->urbout->transfer_buffer_length); 312 usbhid->urbout->dev = hid_to_usb_dev(hid);
245 kfree(raw_report); 313 memcpy(usbhid->outbuf, raw_report, usbhid->urbout->transfer_buffer_length);
314 kfree(raw_report);
246 315
247 dbg_hid("submitting out urb\n"); 316 dbg_hid("submitting out urb\n");
248 317
249 if (usb_submit_urb(usbhid->urbout, GFP_ATOMIC)) { 318 if (usb_submit_urb(usbhid->urbout, GFP_ATOMIC)) {
250 err_hid("usb_submit_urb(out) failed"); 319 err_hid("usb_submit_urb(out) failed");
251 return -1; 320 return -1;
321 }
322 } else {
323 /*
324 * queue work to wake up the device.
325 * as the work queue is freezeable, this is safe
326 * with respect to STD and STR
327 */
328 queue_work(resumption_waker, &usbhid->restart_work);
252 } 329 }
253 330
254 return 0; 331 return 0;
@@ -266,41 +343,50 @@ static int hid_submit_ctrl(struct hid_device *hid)
266 raw_report = usbhid->ctrl[usbhid->ctrltail].raw_report; 343 raw_report = usbhid->ctrl[usbhid->ctrltail].raw_report;
267 dir = usbhid->ctrl[usbhid->ctrltail].dir; 344 dir = usbhid->ctrl[usbhid->ctrltail].dir;
268 345
269 len = ((report->size - 1) >> 3) + 1 + (report->id > 0); 346 if (!test_bit(HID_REPORTED_IDLE, &usbhid->iofl)) {
270 if (dir == USB_DIR_OUT) { 347 len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
271 usbhid->urbctrl->pipe = usb_sndctrlpipe(hid_to_usb_dev(hid), 0); 348 if (dir == USB_DIR_OUT) {
272 usbhid->urbctrl->transfer_buffer_length = len; 349 usbhid->urbctrl->pipe = usb_sndctrlpipe(hid_to_usb_dev(hid), 0);
273 memcpy(usbhid->ctrlbuf, raw_report, len); 350 usbhid->urbctrl->transfer_buffer_length = len;
274 kfree(raw_report); 351 memcpy(usbhid->ctrlbuf, raw_report, len);
275 } else { 352 kfree(raw_report);
276 int maxpacket, padlen; 353 } else {
277 354 int maxpacket, padlen;
278 usbhid->urbctrl->pipe = usb_rcvctrlpipe(hid_to_usb_dev(hid), 0); 355
279 maxpacket = usb_maxpacket(hid_to_usb_dev(hid), usbhid->urbctrl->pipe, 0); 356 usbhid->urbctrl->pipe = usb_rcvctrlpipe(hid_to_usb_dev(hid), 0);
280 if (maxpacket > 0) { 357 maxpacket = usb_maxpacket(hid_to_usb_dev(hid), usbhid->urbctrl->pipe, 0);
281 padlen = DIV_ROUND_UP(len, maxpacket); 358 if (maxpacket > 0) {
282 padlen *= maxpacket; 359 padlen = DIV_ROUND_UP(len, maxpacket);
283 if (padlen > usbhid->bufsize) 360 padlen *= maxpacket;
284 padlen = usbhid->bufsize; 361 if (padlen > usbhid->bufsize)
285 } else 362 padlen = usbhid->bufsize;
286 padlen = 0; 363 } else
287 usbhid->urbctrl->transfer_buffer_length = padlen; 364 padlen = 0;
288 } 365 usbhid->urbctrl->transfer_buffer_length = padlen;
289 usbhid->urbctrl->dev = hid_to_usb_dev(hid); 366 }
367 usbhid->urbctrl->dev = hid_to_usb_dev(hid);
290 368
291 usbhid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir; 369 usbhid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir;
292 usbhid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT : HID_REQ_GET_REPORT; 370 usbhid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT : HID_REQ_GET_REPORT;
293 usbhid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) | report->id); 371 usbhid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) | report->id);
294 usbhid->cr->wIndex = cpu_to_le16(usbhid->ifnum); 372 usbhid->cr->wIndex = cpu_to_le16(usbhid->ifnum);
295 usbhid->cr->wLength = cpu_to_le16(len); 373 usbhid->cr->wLength = cpu_to_le16(len);
296 374
297 dbg_hid("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u\n", 375 dbg_hid("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u\n",
298 usbhid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" : "Get_Report", 376 usbhid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" : "Get_Report",
299 usbhid->cr->wValue, usbhid->cr->wIndex, usbhid->cr->wLength); 377 usbhid->cr->wValue, usbhid->cr->wIndex, usbhid->cr->wLength);
300 378
301 if (usb_submit_urb(usbhid->urbctrl, GFP_ATOMIC)) { 379 if (usb_submit_urb(usbhid->urbctrl, GFP_ATOMIC)) {
302 err_hid("usb_submit_urb(ctrl) failed"); 380 err_hid("usb_submit_urb(ctrl) failed");
303 return -1; 381 return -1;
382 }
383 } else {
384 /*
385 * queue work to wake up the device.
386 * as the work queue is freezeable, this is safe
387 * with respect to STD and STR
388 */
389 queue_work(resumption_waker, &usbhid->restart_work);
304 } 390 }
305 391
306 return 0; 392 return 0;
@@ -332,7 +418,7 @@ static void hid_irq_out(struct urb *urb)
332 "received\n", urb->status); 418 "received\n", urb->status);
333 } 419 }
334 420
335 spin_lock_irqsave(&usbhid->outlock, flags); 421 spin_lock_irqsave(&usbhid->lock, flags);
336 422
337 if (unplug) 423 if (unplug)
338 usbhid->outtail = usbhid->outhead; 424 usbhid->outtail = usbhid->outhead;
@@ -344,12 +430,12 @@ static void hid_irq_out(struct urb *urb)
344 clear_bit(HID_OUT_RUNNING, &usbhid->iofl); 430 clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
345 wake_up(&usbhid->wait); 431 wake_up(&usbhid->wait);
346 } 432 }
347 spin_unlock_irqrestore(&usbhid->outlock, flags); 433 spin_unlock_irqrestore(&usbhid->lock, flags);
348 return; 434 return;
349 } 435 }
350 436
351 clear_bit(HID_OUT_RUNNING, &usbhid->iofl); 437 clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
352 spin_unlock_irqrestore(&usbhid->outlock, flags); 438 spin_unlock_irqrestore(&usbhid->lock, flags);
353 wake_up(&usbhid->wait); 439 wake_up(&usbhid->wait);
354} 440}
355 441
@@ -361,12 +447,11 @@ static void hid_ctrl(struct urb *urb)
361{ 447{
362 struct hid_device *hid = urb->context; 448 struct hid_device *hid = urb->context;
363 struct usbhid_device *usbhid = hid->driver_data; 449 struct usbhid_device *usbhid = hid->driver_data;
364 unsigned long flags; 450 int unplug = 0, status = urb->status;
365 int unplug = 0;
366 451
367 spin_lock_irqsave(&usbhid->ctrllock, flags); 452 spin_lock(&usbhid->lock);
368 453
369 switch (urb->status) { 454 switch (status) {
370 case 0: /* success */ 455 case 0: /* success */
371 if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_IN) 456 if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_IN)
372 hid_input_report(urb->context, 457 hid_input_report(urb->context,
@@ -383,7 +468,7 @@ static void hid_ctrl(struct urb *urb)
383 break; 468 break;
384 default: /* error */ 469 default: /* error */
385 dev_warn(&urb->dev->dev, "ctrl urb status %d " 470 dev_warn(&urb->dev->dev, "ctrl urb status %d "
386 "received\n", urb->status); 471 "received\n", status);
387 } 472 }
388 473
389 if (unplug) 474 if (unplug)
@@ -396,19 +481,18 @@ static void hid_ctrl(struct urb *urb)
396 clear_bit(HID_CTRL_RUNNING, &usbhid->iofl); 481 clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
397 wake_up(&usbhid->wait); 482 wake_up(&usbhid->wait);
398 } 483 }
399 spin_unlock_irqrestore(&usbhid->ctrllock, flags); 484 spin_unlock(&usbhid->lock);
400 return; 485 return;
401 } 486 }
402 487
403 clear_bit(HID_CTRL_RUNNING, &usbhid->iofl); 488 clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
404 spin_unlock_irqrestore(&usbhid->ctrllock, flags); 489 spin_unlock(&usbhid->lock);
405 wake_up(&usbhid->wait); 490 wake_up(&usbhid->wait);
406} 491}
407 492
408void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir) 493void __usbhid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir)
409{ 494{
410 int head; 495 int head;
411 unsigned long flags;
412 struct usbhid_device *usbhid = hid->driver_data; 496 struct usbhid_device *usbhid = hid->driver_data;
413 int len = ((report->size - 1) >> 3) + 1 + (report->id > 0); 497 int len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
414 498
@@ -416,18 +500,13 @@ void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, uns
416 return; 500 return;
417 501
418 if (usbhid->urbout && dir == USB_DIR_OUT && report->type == HID_OUTPUT_REPORT) { 502 if (usbhid->urbout && dir == USB_DIR_OUT && report->type == HID_OUTPUT_REPORT) {
419
420 spin_lock_irqsave(&usbhid->outlock, flags);
421
422 if ((head = (usbhid->outhead + 1) & (HID_OUTPUT_FIFO_SIZE - 1)) == usbhid->outtail) { 503 if ((head = (usbhid->outhead + 1) & (HID_OUTPUT_FIFO_SIZE - 1)) == usbhid->outtail) {
423 spin_unlock_irqrestore(&usbhid->outlock, flags);
424 dev_warn(&hid->dev, "output queue full\n"); 504 dev_warn(&hid->dev, "output queue full\n");
425 return; 505 return;
426 } 506 }
427 507
428 usbhid->out[usbhid->outhead].raw_report = kmalloc(len, GFP_ATOMIC); 508 usbhid->out[usbhid->outhead].raw_report = kmalloc(len, GFP_ATOMIC);
429 if (!usbhid->out[usbhid->outhead].raw_report) { 509 if (!usbhid->out[usbhid->outhead].raw_report) {
430 spin_unlock_irqrestore(&usbhid->outlock, flags);
431 dev_warn(&hid->dev, "output queueing failed\n"); 510 dev_warn(&hid->dev, "output queueing failed\n");
432 return; 511 return;
433 } 512 }
@@ -438,15 +517,10 @@ void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, uns
438 if (!test_and_set_bit(HID_OUT_RUNNING, &usbhid->iofl)) 517 if (!test_and_set_bit(HID_OUT_RUNNING, &usbhid->iofl))
439 if (hid_submit_out(hid)) 518 if (hid_submit_out(hid))
440 clear_bit(HID_OUT_RUNNING, &usbhid->iofl); 519 clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
441
442 spin_unlock_irqrestore(&usbhid->outlock, flags);
443 return; 520 return;
444 } 521 }
445 522
446 spin_lock_irqsave(&usbhid->ctrllock, flags);
447
448 if ((head = (usbhid->ctrlhead + 1) & (HID_CONTROL_FIFO_SIZE - 1)) == usbhid->ctrltail) { 523 if ((head = (usbhid->ctrlhead + 1) & (HID_CONTROL_FIFO_SIZE - 1)) == usbhid->ctrltail) {
449 spin_unlock_irqrestore(&usbhid->ctrllock, flags);
450 dev_warn(&hid->dev, "control queue full\n"); 524 dev_warn(&hid->dev, "control queue full\n");
451 return; 525 return;
452 } 526 }
@@ -454,7 +528,6 @@ void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, uns
454 if (dir == USB_DIR_OUT) { 528 if (dir == USB_DIR_OUT) {
455 usbhid->ctrl[usbhid->ctrlhead].raw_report = kmalloc(len, GFP_ATOMIC); 529 usbhid->ctrl[usbhid->ctrlhead].raw_report = kmalloc(len, GFP_ATOMIC);
456 if (!usbhid->ctrl[usbhid->ctrlhead].raw_report) { 530 if (!usbhid->ctrl[usbhid->ctrlhead].raw_report) {
457 spin_unlock_irqrestore(&usbhid->ctrllock, flags);
458 dev_warn(&hid->dev, "control queueing failed\n"); 531 dev_warn(&hid->dev, "control queueing failed\n");
459 return; 532 return;
460 } 533 }
@@ -467,15 +540,25 @@ void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, uns
467 if (!test_and_set_bit(HID_CTRL_RUNNING, &usbhid->iofl)) 540 if (!test_and_set_bit(HID_CTRL_RUNNING, &usbhid->iofl))
468 if (hid_submit_ctrl(hid)) 541 if (hid_submit_ctrl(hid))
469 clear_bit(HID_CTRL_RUNNING, &usbhid->iofl); 542 clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
543}
544
545void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir)
546{
547 struct usbhid_device *usbhid = hid->driver_data;
548 unsigned long flags;
470 549
471 spin_unlock_irqrestore(&usbhid->ctrllock, flags); 550 spin_lock_irqsave(&usbhid->lock, flags);
551 __usbhid_submit_report(hid, report, dir);
552 spin_unlock_irqrestore(&usbhid->lock, flags);
472} 553}
473EXPORT_SYMBOL_GPL(usbhid_submit_report); 554EXPORT_SYMBOL_GPL(usbhid_submit_report);
474 555
475static int usb_hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) 556static int usb_hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
476{ 557{
477 struct hid_device *hid = input_get_drvdata(dev); 558 struct hid_device *hid = input_get_drvdata(dev);
559 struct usbhid_device *usbhid = hid->driver_data;
478 struct hid_field *field; 560 struct hid_field *field;
561 unsigned long flags;
479 int offset; 562 int offset;
480 563
481 if (type == EV_FF) 564 if (type == EV_FF)
@@ -490,6 +573,15 @@ static int usb_hidinput_input_event(struct input_dev *dev, unsigned int type, un
490 } 573 }
491 574
492 hid_set_field(field, offset, value); 575 hid_set_field(field, offset, value);
576 if (value) {
577 spin_lock_irqsave(&usbhid->lock, flags);
578 usbhid->ledcount++;
579 spin_unlock_irqrestore(&usbhid->lock, flags);
580 } else {
581 spin_lock_irqsave(&usbhid->lock, flags);
582 usbhid->ledcount--;
583 spin_unlock_irqrestore(&usbhid->lock, flags);
584 }
493 usbhid_submit_report(hid, field->report, USB_DIR_OUT); 585 usbhid_submit_report(hid, field->report, USB_DIR_OUT);
494 586
495 return 0; 587 return 0;
@@ -538,15 +630,22 @@ int usbhid_open(struct hid_device *hid)
538 struct usbhid_device *usbhid = hid->driver_data; 630 struct usbhid_device *usbhid = hid->driver_data;
539 int res; 631 int res;
540 632
633 mutex_lock(&hid_open_mut);
541 if (!hid->open++) { 634 if (!hid->open++) {
542 res = usb_autopm_get_interface(usbhid->intf); 635 res = usb_autopm_get_interface(usbhid->intf);
636 /* the device must be awake to reliable request remote wakeup */
543 if (res < 0) { 637 if (res < 0) {
544 hid->open--; 638 hid->open--;
639 mutex_unlock(&hid_open_mut);
545 return -EIO; 640 return -EIO;
546 } 641 }
642 usbhid->intf->needs_remote_wakeup = 1;
643 if (hid_start_in(hid))
644 hid_io_error(hid);
645
646 usb_autopm_put_interface(usbhid->intf);
547 } 647 }
548 if (hid_start_in(hid)) 648 mutex_unlock(&hid_open_mut);
549 hid_io_error(hid);
550 return 0; 649 return 0;
551} 650}
552 651
@@ -554,10 +653,22 @@ void usbhid_close(struct hid_device *hid)
554{ 653{
555 struct usbhid_device *usbhid = hid->driver_data; 654 struct usbhid_device *usbhid = hid->driver_data;
556 655
656 mutex_lock(&hid_open_mut);
657
658 /* protecting hid->open to make sure we don't restart
659 * data acquistion due to a resumption we no longer
660 * care about
661 */
662 spin_lock_irq(&usbhid->lock);
557 if (!--hid->open) { 663 if (!--hid->open) {
664 spin_unlock_irq(&usbhid->lock);
558 usb_kill_urb(usbhid->urbin); 665 usb_kill_urb(usbhid->urbin);
559 usb_autopm_put_interface(usbhid->intf); 666 flush_scheduled_work();
667 usbhid->intf->needs_remote_wakeup = 0;
668 } else {
669 spin_unlock_irq(&usbhid->lock);
560 } 670 }
671 mutex_unlock(&hid_open_mut);
561} 672}
562 673
563/* 674/*
@@ -687,6 +798,25 @@ static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t co
687 return ret; 798 return ret;
688} 799}
689 800
801static void usbhid_restart_queues(struct usbhid_device *usbhid)
802{
803 if (usbhid->urbout)
804 usbhid_restart_out_queue(usbhid);
805 usbhid_restart_ctrl_queue(usbhid);
806}
807
808static void __usbhid_restart_queues(struct work_struct *work)
809{
810 struct usbhid_device *usbhid =
811 container_of(work, struct usbhid_device, restart_work);
812 int r;
813
814 r = usb_autopm_get_interface(usbhid->intf);
815 if (r < 0)
816 return;
817 usb_autopm_put_interface(usbhid->intf);
818}
819
690static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid) 820static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
691{ 821{
692 struct usbhid_device *usbhid = hid->driver_data; 822 struct usbhid_device *usbhid = hid->driver_data;
@@ -853,11 +983,11 @@ static int usbhid_start(struct hid_device *hid)
853 983
854 init_waitqueue_head(&usbhid->wait); 984 init_waitqueue_head(&usbhid->wait);
855 INIT_WORK(&usbhid->reset_work, hid_reset); 985 INIT_WORK(&usbhid->reset_work, hid_reset);
986 INIT_WORK(&usbhid->restart_work, __usbhid_restart_queues);
856 setup_timer(&usbhid->io_retry, hid_retry_timeout, (unsigned long) hid); 987 setup_timer(&usbhid->io_retry, hid_retry_timeout, (unsigned long) hid);
857 988
858 spin_lock_init(&usbhid->inlock); 989 spin_lock_init(&usbhid->lock);
859 spin_lock_init(&usbhid->outlock); 990 spin_lock_init(&usbhid->lock);
860 spin_lock_init(&usbhid->ctrllock);
861 991
862 usbhid->intf = intf; 992 usbhid->intf = intf;
863 usbhid->ifnum = interface->desc.bInterfaceNumber; 993 usbhid->ifnum = interface->desc.bInterfaceNumber;
@@ -909,15 +1039,14 @@ static void usbhid_stop(struct hid_device *hid)
909 return; 1039 return;
910 1040
911 clear_bit(HID_STARTED, &usbhid->iofl); 1041 clear_bit(HID_STARTED, &usbhid->iofl);
912 spin_lock_irq(&usbhid->inlock); /* Sync with error handler */ 1042 spin_lock_irq(&usbhid->lock); /* Sync with error handler */
913 set_bit(HID_DISCONNECTED, &usbhid->iofl); 1043 set_bit(HID_DISCONNECTED, &usbhid->iofl);
914 spin_unlock_irq(&usbhid->inlock); 1044 spin_unlock_irq(&usbhid->lock);
915 usb_kill_urb(usbhid->urbin); 1045 usb_kill_urb(usbhid->urbin);
916 usb_kill_urb(usbhid->urbout); 1046 usb_kill_urb(usbhid->urbout);
917 usb_kill_urb(usbhid->urbctrl); 1047 usb_kill_urb(usbhid->urbctrl);
918 1048
919 del_timer_sync(&usbhid->io_retry); 1049 hid_cancel_delayed_stuff(usbhid);
920 cancel_work_sync(&usbhid->reset_work);
921 1050
922 if (hid->claimed & HID_CLAIMED_INPUT) 1051 if (hid->claimed & HID_CLAIMED_INPUT)
923 hidinput_disconnect(hid); 1052 hidinput_disconnect(hid);
@@ -938,12 +1067,28 @@ static void usbhid_stop(struct hid_device *hid)
938 hid_free_buffers(hid_to_usb_dev(hid), hid); 1067 hid_free_buffers(hid_to_usb_dev(hid), hid);
939} 1068}
940 1069
1070static int usbhid_power(struct hid_device *hid, int lvl)
1071{
1072 int r = 0;
1073
1074 switch (lvl) {
1075 case PM_HINT_FULLON:
1076 r = usbhid_get_power(hid);
1077 break;
1078 case PM_HINT_NORMAL:
1079 usbhid_put_power(hid);
1080 break;
1081 }
1082 return r;
1083}
1084
941static struct hid_ll_driver usb_hid_driver = { 1085static struct hid_ll_driver usb_hid_driver = {
942 .parse = usbhid_parse, 1086 .parse = usbhid_parse,
943 .start = usbhid_start, 1087 .start = usbhid_start,
944 .stop = usbhid_stop, 1088 .stop = usbhid_stop,
945 .open = usbhid_open, 1089 .open = usbhid_open,
946 .close = usbhid_close, 1090 .close = usbhid_close,
1091 .power = usbhid_power,
947 .hidinput_input_event = usb_hidinput_input_event, 1092 .hidinput_input_event = usb_hidinput_input_event,
948}; 1093};
949 1094
@@ -1052,19 +1197,126 @@ static void hid_disconnect(struct usb_interface *intf)
1052 kfree(usbhid); 1197 kfree(usbhid);
1053} 1198}
1054 1199
1200static void hid_cancel_delayed_stuff(struct usbhid_device *usbhid)
1201{
1202 del_timer_sync(&usbhid->io_retry);
1203 cancel_work_sync(&usbhid->restart_work);
1204 cancel_work_sync(&usbhid->reset_work);
1205}
1206
1207static void hid_cease_io(struct usbhid_device *usbhid)
1208{
1209 del_timer(&usbhid->io_retry);
1210 usb_kill_urb(usbhid->urbin);
1211 usb_kill_urb(usbhid->urbctrl);
1212 usb_kill_urb(usbhid->urbout);
1213}
1214
1215/* Treat USB reset pretty much the same as suspend/resume */
1216static int hid_pre_reset(struct usb_interface *intf)
1217{
1218 struct hid_device *hid = usb_get_intfdata(intf);
1219 struct usbhid_device *usbhid = hid->driver_data;
1220
1221 spin_lock_irq(&usbhid->lock);
1222 set_bit(HID_RESET_PENDING, &usbhid->iofl);
1223 spin_unlock_irq(&usbhid->lock);
1224 cancel_work_sync(&usbhid->restart_work);
1225 hid_cease_io(usbhid);
1226
1227 return 0;
1228}
1229
1230/* Same routine used for post_reset and reset_resume */
1231static int hid_post_reset(struct usb_interface *intf)
1232{
1233 struct usb_device *dev = interface_to_usbdev (intf);
1234 struct hid_device *hid = usb_get_intfdata(intf);
1235 struct usbhid_device *usbhid = hid->driver_data;
1236 int status;
1237
1238 spin_lock_irq(&usbhid->lock);
1239 clear_bit(HID_RESET_PENDING, &usbhid->iofl);
1240 spin_unlock_irq(&usbhid->lock);
1241 hid_set_idle(dev, intf->cur_altsetting->desc.bInterfaceNumber, 0, 0);
1242 /* FIXME: Any more reinitialization needed? */
1243 status = hid_start_in(hid);
1244 if (status < 0)
1245 hid_io_error(hid);
1246 usbhid_restart_queues(usbhid);
1247
1248 return 0;
1249}
1250
1251int usbhid_get_power(struct hid_device *hid)
1252{
1253 struct usbhid_device *usbhid = hid->driver_data;
1254
1255 return usb_autopm_get_interface(usbhid->intf);
1256}
1257
1258void usbhid_put_power(struct hid_device *hid)
1259{
1260 struct usbhid_device *usbhid = hid->driver_data;
1261
1262 usb_autopm_put_interface(usbhid->intf);
1263}
1264
1265
1266#ifdef CONFIG_PM
1055static int hid_suspend(struct usb_interface *intf, pm_message_t message) 1267static int hid_suspend(struct usb_interface *intf, pm_message_t message)
1056{ 1268{
1057 struct hid_device *hid = usb_get_intfdata (intf); 1269 struct hid_device *hid = usb_get_intfdata(intf);
1058 struct usbhid_device *usbhid = hid->driver_data; 1270 struct usbhid_device *usbhid = hid->driver_data;
1271 struct usb_device *udev = interface_to_usbdev(intf);
1272 int status;
1059 1273
1060 if (!test_bit(HID_STARTED, &usbhid->iofl)) 1274 if (udev->auto_pm) {
1061 return 0; 1275 spin_lock_irq(&usbhid->lock); /* Sync with error handler */
1276 if (!test_bit(HID_RESET_PENDING, &usbhid->iofl)
1277 && !test_bit(HID_CLEAR_HALT, &usbhid->iofl)
1278 && !test_bit(HID_OUT_RUNNING, &usbhid->iofl)
1279 && !test_bit(HID_CTRL_RUNNING, &usbhid->iofl)
1280 && !test_bit(HID_KEYS_PRESSED, &usbhid->iofl)
1281 && (!usbhid->ledcount || ignoreled))
1282 {
1283 set_bit(HID_REPORTED_IDLE, &usbhid->iofl);
1284 spin_unlock_irq(&usbhid->lock);
1285 } else {
1286 usbhid_mark_busy(usbhid);
1287 spin_unlock_irq(&usbhid->lock);
1288 return -EBUSY;
1289 }
1062 1290
1063 spin_lock_irq(&usbhid->inlock); /* Sync with error handler */ 1291 } else {
1064 set_bit(HID_SUSPENDED, &usbhid->iofl); 1292 spin_lock_irq(&usbhid->lock);
1065 spin_unlock_irq(&usbhid->inlock); 1293 set_bit(HID_REPORTED_IDLE, &usbhid->iofl);
1066 del_timer_sync(&usbhid->io_retry); 1294 spin_unlock_irq(&usbhid->lock);
1067 usb_kill_urb(usbhid->urbin); 1295 if (usbhid_wait_io(hid) < 0)
1296 return -EIO;
1297 }
1298
1299 if (!ignoreled && udev->auto_pm) {
1300 spin_lock_irq(&usbhid->lock);
1301 if (test_bit(HID_LED_ON, &usbhid->iofl)) {
1302 spin_unlock_irq(&usbhid->lock);
1303 usbhid_mark_busy(usbhid);
1304 return -EBUSY;
1305 }
1306 spin_unlock_irq(&usbhid->lock);
1307 }
1308
1309 hid_cancel_delayed_stuff(usbhid);
1310 hid_cease_io(usbhid);
1311
1312 if (udev->auto_pm && test_bit(HID_KEYS_PRESSED, &usbhid->iofl)) {
1313 /* lost race against keypresses */
1314 status = hid_start_in(hid);
1315 if (status < 0)
1316 hid_io_error(hid);
1317 usbhid_mark_busy(usbhid);
1318 return -EBUSY;
1319 }
1068 dev_dbg(&intf->dev, "suspend\n"); 1320 dev_dbg(&intf->dev, "suspend\n");
1069 return 0; 1321 return 0;
1070} 1322}
@@ -1078,32 +1330,33 @@ static int hid_resume(struct usb_interface *intf)
1078 if (!test_bit(HID_STARTED, &usbhid->iofl)) 1330 if (!test_bit(HID_STARTED, &usbhid->iofl))
1079 return 0; 1331 return 0;
1080 1332
1081 clear_bit(HID_SUSPENDED, &usbhid->iofl); 1333 clear_bit(HID_REPORTED_IDLE, &usbhid->iofl);
1334 usbhid_mark_busy(usbhid);
1335
1336 if (test_bit(HID_CLEAR_HALT, &usbhid->iofl) ||
1337 test_bit(HID_RESET_PENDING, &usbhid->iofl))
1338 schedule_work(&usbhid->reset_work);
1082 usbhid->retry_delay = 0; 1339 usbhid->retry_delay = 0;
1083 status = hid_start_in(hid); 1340 status = hid_start_in(hid);
1084 dev_dbg(&intf->dev, "resume status %d\n", status); 1341 if (status < 0)
1085 return status; 1342 hid_io_error(hid);
1086} 1343 usbhid_restart_queues(usbhid);
1087 1344
1088/* Treat USB reset pretty much the same as suspend/resume */ 1345 dev_dbg(&intf->dev, "resume status %d\n", status);
1089static int hid_pre_reset(struct usb_interface *intf)
1090{
1091 /* FIXME: What if the interface is already suspended? */
1092 hid_suspend(intf, PMSG_ON);
1093 return 0; 1346 return 0;
1094} 1347}
1095 1348
1096/* Same routine used for post_reset and reset_resume */ 1349static int hid_reset_resume(struct usb_interface *intf)
1097static int hid_post_reset(struct usb_interface *intf)
1098{ 1350{
1099 struct usb_device *dev = interface_to_usbdev (intf); 1351 struct hid_device *hid = usb_get_intfdata(intf);
1100 1352 struct usbhid_device *usbhid = hid->driver_data;
1101 hid_set_idle(dev, intf->cur_altsetting->desc.bInterfaceNumber, 0, 0);
1102 /* FIXME: Any more reinitialization needed? */
1103 1353
1104 return hid_resume(intf); 1354 clear_bit(HID_REPORTED_IDLE, &usbhid->iofl);
1355 return hid_post_reset(intf);
1105} 1356}
1106 1357
1358#endif /* CONFIG_PM */
1359
1107static struct usb_device_id hid_usb_ids [] = { 1360static struct usb_device_id hid_usb_ids [] = {
1108 { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS, 1361 { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
1109 .bInterfaceClass = USB_INTERFACE_CLASS_HID }, 1362 .bInterfaceClass = USB_INTERFACE_CLASS_HID },
@@ -1116,9 +1369,11 @@ static struct usb_driver hid_driver = {
1116 .name = "usbhid", 1369 .name = "usbhid",
1117 .probe = hid_probe, 1370 .probe = hid_probe,
1118 .disconnect = hid_disconnect, 1371 .disconnect = hid_disconnect,
1372#ifdef CONFIG_PM
1119 .suspend = hid_suspend, 1373 .suspend = hid_suspend,
1120 .resume = hid_resume, 1374 .resume = hid_resume,
1121 .reset_resume = hid_post_reset, 1375 .reset_resume = hid_reset_resume,
1376#endif
1122 .pre_reset = hid_pre_reset, 1377 .pre_reset = hid_pre_reset,
1123 .post_reset = hid_post_reset, 1378 .post_reset = hid_post_reset,
1124 .id_table = hid_usb_ids, 1379 .id_table = hid_usb_ids,
@@ -1137,7 +1392,11 @@ static struct hid_driver hid_usb_driver = {
1137 1392
1138static int __init hid_init(void) 1393static int __init hid_init(void)
1139{ 1394{
1140 int retval; 1395 int retval = -ENOMEM;
1396
1397 resumption_waker = create_freezeable_workqueue("usbhid_resumer");
1398 if (!resumption_waker)
1399 goto no_queue;
1141 retval = hid_register_driver(&hid_usb_driver); 1400 retval = hid_register_driver(&hid_usb_driver);
1142 if (retval) 1401 if (retval)
1143 goto hid_register_fail; 1402 goto hid_register_fail;
@@ -1161,6 +1420,8 @@ hiddev_init_fail:
1161usbhid_quirks_init_fail: 1420usbhid_quirks_init_fail:
1162 hid_unregister_driver(&hid_usb_driver); 1421 hid_unregister_driver(&hid_usb_driver);
1163hid_register_fail: 1422hid_register_fail:
1423 destroy_workqueue(resumption_waker);
1424no_queue:
1164 return retval; 1425 return retval;
1165} 1426}
1166 1427
@@ -1170,6 +1431,7 @@ static void __exit hid_exit(void)
1170 hiddev_exit(); 1431 hiddev_exit();
1171 usbhid_quirks_exit(); 1432 usbhid_quirks_exit();
1172 hid_unregister_driver(&hid_usb_driver); 1433 hid_unregister_driver(&hid_usb_driver);
1434 destroy_workqueue(resumption_waker);
1173} 1435}
1174 1436
1175module_init(hid_init); 1437module_init(hid_init);
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 93dcb7e29102..e9b436d2d944 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -246,10 +246,12 @@ static int hiddev_release(struct inode * inode, struct file * file)
246 spin_unlock_irqrestore(&list->hiddev->list_lock, flags); 246 spin_unlock_irqrestore(&list->hiddev->list_lock, flags);
247 247
248 if (!--list->hiddev->open) { 248 if (!--list->hiddev->open) {
249 if (list->hiddev->exist) 249 if (list->hiddev->exist) {
250 usbhid_close(list->hiddev->hid); 250 usbhid_close(list->hiddev->hid);
251 else 251 usbhid_put_power(list->hiddev->hid);
252 } else {
252 kfree(list->hiddev); 253 kfree(list->hiddev);
254 }
253 } 255 }
254 256
255 kfree(list); 257 kfree(list);
@@ -300,6 +302,17 @@ static int hiddev_open(struct inode *inode, struct file *file)
300 list_add_tail(&list->node, &hiddev_table[i]->list); 302 list_add_tail(&list->node, &hiddev_table[i]->list);
301 spin_unlock_irq(&list->hiddev->list_lock); 303 spin_unlock_irq(&list->hiddev->list_lock);
302 304
305 if (!list->hiddev->open++)
306 if (list->hiddev->exist) {
307 struct hid_device *hid = hiddev_table[i]->hid;
308 res = usbhid_get_power(hid);
309 if (res < 0) {
310 res = -EIO;
311 goto bail;
312 }
313 usbhid_open(hid);
314 }
315
303 return 0; 316 return 0;
304bail: 317bail:
305 file->private_data = NULL; 318 file->private_data = NULL;
diff --git a/drivers/hid/usbhid/usbhid.h b/drivers/hid/usbhid/usbhid.h
index 9eb30564be9c..08f505ca2e3d 100644
--- a/drivers/hid/usbhid/usbhid.h
+++ b/drivers/hid/usbhid/usbhid.h
@@ -38,7 +38,10 @@ int usbhid_wait_io(struct hid_device* hid);
38void usbhid_close(struct hid_device *hid); 38void usbhid_close(struct hid_device *hid);
39int usbhid_open(struct hid_device *hid); 39int usbhid_open(struct hid_device *hid);
40void usbhid_init_reports(struct hid_device *hid); 40void usbhid_init_reports(struct hid_device *hid);
41void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir); 41void usbhid_submit_report
42(struct hid_device *hid, struct hid_report *report, unsigned char dir);
43int usbhid_get_power(struct hid_device *hid);
44void usbhid_put_power(struct hid_device *hid);
42 45
43/* iofl flags */ 46/* iofl flags */
44#define HID_CTRL_RUNNING 1 47#define HID_CTRL_RUNNING 1
@@ -49,6 +52,9 @@ void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, uns
49#define HID_CLEAR_HALT 6 52#define HID_CLEAR_HALT 6
50#define HID_DISCONNECTED 7 53#define HID_DISCONNECTED 7
51#define HID_STARTED 8 54#define HID_STARTED 8
55#define HID_REPORTED_IDLE 9
56#define HID_KEYS_PRESSED 10
57#define HID_LED_ON 11
52 58
53/* 59/*
54 * USB-specific HID struct, to be pointed to 60 * USB-specific HID struct, to be pointed to
@@ -66,7 +72,6 @@ struct usbhid_device {
66 struct urb *urbin; /* Input URB */ 72 struct urb *urbin; /* Input URB */
67 char *inbuf; /* Input buffer */ 73 char *inbuf; /* Input buffer */
68 dma_addr_t inbuf_dma; /* Input buffer dma */ 74 dma_addr_t inbuf_dma; /* Input buffer dma */
69 spinlock_t inlock; /* Input fifo spinlock */
70 75
71 struct urb *urbctrl; /* Control URB */ 76 struct urb *urbctrl; /* Control URB */
72 struct usb_ctrlrequest *cr; /* Control request struct */ 77 struct usb_ctrlrequest *cr; /* Control request struct */
@@ -75,21 +80,22 @@ struct usbhid_device {
75 unsigned char ctrlhead, ctrltail; /* Control fifo head & tail */ 80 unsigned char ctrlhead, ctrltail; /* Control fifo head & tail */
76 char *ctrlbuf; /* Control buffer */ 81 char *ctrlbuf; /* Control buffer */
77 dma_addr_t ctrlbuf_dma; /* Control buffer dma */ 82 dma_addr_t ctrlbuf_dma; /* Control buffer dma */
78 spinlock_t ctrllock; /* Control fifo spinlock */
79 83
80 struct urb *urbout; /* Output URB */ 84 struct urb *urbout; /* Output URB */
81 struct hid_output_fifo out[HID_CONTROL_FIFO_SIZE]; /* Output pipe fifo */ 85 struct hid_output_fifo out[HID_CONTROL_FIFO_SIZE]; /* Output pipe fifo */
82 unsigned char outhead, outtail; /* Output pipe fifo head & tail */ 86 unsigned char outhead, outtail; /* Output pipe fifo head & tail */
83 char *outbuf; /* Output buffer */ 87 char *outbuf; /* Output buffer */
84 dma_addr_t outbuf_dma; /* Output buffer dma */ 88 dma_addr_t outbuf_dma; /* Output buffer dma */
85 spinlock_t outlock; /* Output fifo spinlock */
86 89
90 spinlock_t lock; /* fifo spinlock */
87 unsigned long iofl; /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */ 91 unsigned long iofl; /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */
88 struct timer_list io_retry; /* Retry timer */ 92 struct timer_list io_retry; /* Retry timer */
89 unsigned long stop_retry; /* Time to give up, in jiffies */ 93 unsigned long stop_retry; /* Time to give up, in jiffies */
90 unsigned int retry_delay; /* Delay length in ms */ 94 unsigned int retry_delay; /* Delay length in ms */
91 struct work_struct reset_work; /* Task context for resets */ 95 struct work_struct reset_work; /* Task context for resets */
96 struct work_struct restart_work; /* waking up for output to be done in a task */
92 wait_queue_head_t wait; /* For sleeping */ 97 wait_queue_head_t wait; /* For sleeping */
98 int ledcount; /* counting the number of active leds */
93}; 99};
94 100
95#define hid_to_usb_dev(hid_dev) \ 101#define hid_to_usb_dev(hid_dev) \