1 /*
2 * PROJECT: ReactOS USB OHCI Miniport Driver
3 * LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
4 * PURPOSE: USBOHCI root hub functions
5 * COPYRIGHT: Copyright 2017-2018 Vadim Galyant <vgal@rambler.ru>
6 */
7
8 #include "usbohci.h"
9
10 #define NDEBUG
11 #include <debug.h>
12
13 OHCI_REG_RH_DESCRIPTORA
14 NTAPI
OHCI_ReadRhDescriptorA(IN POHCI_EXTENSION OhciExtension)15 OHCI_ReadRhDescriptorA(IN POHCI_EXTENSION OhciExtension)
16 {
17 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
18 OHCI_REG_RH_DESCRIPTORA DescriptorA;
19 PULONG DescriptorAReg;
20 ULONG ix;
21
22 OperationalRegs = OhciExtension->OperationalRegs;
23 DescriptorAReg = (PULONG)&OperationalRegs->HcRhDescriptorA;
24
25 DPRINT("OHCI_ReadRhDescriptorA: OhciExtension - %p\n", OhciExtension);
26
27 for (ix = 0; ix < 10; ix++)
28 {
29 DescriptorA.AsULONG = READ_REGISTER_ULONG(DescriptorAReg);
30
31 if (DescriptorA.AsULONG != 0 &&
32 DescriptorA.Reserved == 0 &&
33 DescriptorA.NumberDownstreamPorts <= OHCI_MAX_PORT_COUNT)
34 {
35 break;
36 }
37
38 DPRINT1("OHCI_ReadRhDescriptorA: DescriptorA - %lX, ix - %d\n",
39 DescriptorA.AsULONG, ix);
40
41 KeStallExecutionProcessor(5);
42 }
43
44 return DescriptorA;
45 }
46
47 VOID
48 NTAPI
OHCI_RH_GetRootHubData(IN PVOID ohciExtension,IN PVOID rootHubData)49 OHCI_RH_GetRootHubData(IN PVOID ohciExtension,
50 IN PVOID rootHubData)
51 {
52 POHCI_EXTENSION OhciExtension;
53 PUSBPORT_ROOT_HUB_DATA RootHubData;
54 OHCI_REG_RH_DESCRIPTORA DescriptorA;
55 UCHAR PowerOnToPowerGoodTime;
56 USBPORT_HUB_11_CHARACTERISTICS HubCharacteristics;
57
58 OhciExtension = ohciExtension;
59
60 DPRINT("OHCI_RH_GetRootHubData: OhciExtension - %p, rootHubData - %p\n",
61 OhciExtension,
62 rootHubData);
63
64 RootHubData = rootHubData;
65 DescriptorA = OHCI_ReadRhDescriptorA(OhciExtension);
66
67 RootHubData->NumberOfPorts = DescriptorA.NumberDownstreamPorts;
68
69 /* Waiting time (in 2 ms intervals) */
70 PowerOnToPowerGoodTime = DescriptorA.PowerOnToPowerGoodTime;
71 if (PowerOnToPowerGoodTime <= OHCI_MINIMAL_POTPGT)
72 PowerOnToPowerGoodTime = OHCI_MINIMAL_POTPGT;
73 RootHubData->PowerOnToPowerGood = PowerOnToPowerGoodTime;
74
75 HubCharacteristics.AsUSHORT = 0;
76
77 if (DescriptorA.PowerSwitchingMode)
78 {
79 /* Individual port power switching */
80 HubCharacteristics.PowerControlMode = 1;
81 }
82 else
83 {
84 /* Ganged power switching */
85 HubCharacteristics.PowerControlMode = 0;
86 }
87
88 HubCharacteristics.NoPowerSwitching = 0;
89
90 /* always 0 (OHCI RH is not a compound device) */
91 ASSERT(DescriptorA.DeviceType == 0);
92 HubCharacteristics.PartOfCompoundDevice = DescriptorA.DeviceType;
93
94 HubCharacteristics.OverCurrentProtectionMode = DescriptorA.OverCurrentProtectionMode;
95 HubCharacteristics.NoOverCurrentProtection = DescriptorA.NoOverCurrentProtection;
96
97 RootHubData->HubCharacteristics.Usb11HubCharacteristics = HubCharacteristics;
98 RootHubData->HubControlCurrent = 0;
99 }
100
101 MPSTATUS
102 NTAPI
OHCI_RH_GetStatus(IN PVOID ohciExtension,IN PUSHORT Status)103 OHCI_RH_GetStatus(IN PVOID ohciExtension,
104 IN PUSHORT Status)
105 {
106 DPRINT("OHCI_RH_GetStatus: \n");
107 *Status = USB_GETSTATUS_SELF_POWERED;
108 return MP_STATUS_SUCCESS;
109 }
110
111 MPSTATUS
112 NTAPI
OHCI_RH_GetPortStatus(IN PVOID ohciExtension,IN USHORT Port,IN PUSB_PORT_STATUS_AND_CHANGE PortStatus)113 OHCI_RH_GetPortStatus(IN PVOID ohciExtension,
114 IN USHORT Port,
115 IN PUSB_PORT_STATUS_AND_CHANGE PortStatus)
116 {
117 POHCI_EXTENSION OhciExtension;
118 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
119 PULONG PortStatusReg;
120 OHCI_REG_RH_PORT_STATUS OhciPortStatus;
121 ULONG ix;
122 ULONG Reserved;
123
124 OhciExtension = ohciExtension;
125
126 DPRINT("OHCI_RH_GetPortStatus: OhciExtension - %p, Port - %x, PortStatus - %lX\n",
127 OhciExtension,
128 Port,
129 PortStatus->AsUlong32);
130
131 ASSERT(Port > 0);
132
133 OperationalRegs = OhciExtension->OperationalRegs;
134 PortStatusReg = (PULONG)&OperationalRegs->HcRhPortStatus[Port-1];
135
136 for (ix = 0; ix < 10; ix++)
137 {
138 OhciPortStatus.AsULONG = READ_REGISTER_ULONG(PortStatusReg);
139
140 Reserved = OhciPortStatus.Reserved1r |
141 OhciPortStatus.Reserved2r |
142 OhciPortStatus.Reserved3;
143
144 if (OhciPortStatus.AsULONG && !Reserved)
145 break;
146
147 DPRINT("OHCI_RH_GetPortStatus: OhciPortStatus - %X\n", OhciPortStatus.AsULONG);
148
149 KeStallExecutionProcessor(5);
150 }
151
152 PortStatus->AsUlong32 = OhciPortStatus.AsULONG;
153
154 return MP_STATUS_SUCCESS;
155 }
156
157 MPSTATUS
158 NTAPI
OHCI_RH_GetHubStatus(IN PVOID ohciExtension,IN PUSB_HUB_STATUS_AND_CHANGE HubStatus)159 OHCI_RH_GetHubStatus(IN PVOID ohciExtension,
160 IN PUSB_HUB_STATUS_AND_CHANGE HubStatus)
161 {
162 POHCI_EXTENSION OhciExtension;
163 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
164 PULONG RhStatusReg;
165 OHCI_REG_RH_STATUS HcRhStatus;
166
167 OhciExtension = ohciExtension;
168
169 DPRINT("OHCI_RH_GetHubStatus: ohciExtension - %p, HubStatus - %lX\n",
170 ohciExtension,
171 HubStatus->AsUlong32);
172
173 OperationalRegs = OhciExtension->OperationalRegs;
174 RhStatusReg = (PULONG)&OperationalRegs->HcRhStatus;
175
176 HcRhStatus.AsULONG = READ_REGISTER_ULONG(RhStatusReg);
177
178 HubStatus->HubStatus.LocalPowerLost = HcRhStatus.LocalPowerStatus;
179 HubStatus->HubChange.LocalPowerChange = HcRhStatus.LocalPowerStatusChange;
180
181 HubStatus->HubStatus.OverCurrent = HcRhStatus.OverCurrentIndicator;
182 HubStatus->HubChange.OverCurrentChange = HcRhStatus.OverCurrentIndicatorChangeR;
183
184 return MP_STATUS_SUCCESS;
185 }
186
187 MPSTATUS
188 NTAPI
OHCI_RH_SetFeaturePortReset(IN PVOID ohciExtension,IN USHORT Port)189 OHCI_RH_SetFeaturePortReset(IN PVOID ohciExtension,
190 IN USHORT Port)
191 {
192 POHCI_EXTENSION OhciExtension;
193 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
194 PULONG PortStatusReg;
195 OHCI_REG_RH_PORT_STATUS PortStatus;
196
197 OhciExtension = ohciExtension;
198
199 DPRINT("OHCI_RH_SetFeaturePortReset: OhciExtension - %p, Port - %x\n",
200 OhciExtension,
201 Port);
202
203 ASSERT(Port > 0);
204
205 OperationalRegs = OhciExtension->OperationalRegs;
206 PortStatusReg = (PULONG)&OperationalRegs->HcRhPortStatus[Port-1];
207
208 PortStatus.AsULONG = 0;
209 PortStatus.SetPortReset = 1;
210
211 WRITE_REGISTER_ULONG(PortStatusReg, PortStatus.AsULONG);
212
213 return MP_STATUS_SUCCESS;
214 }
215
216 MPSTATUS
217 NTAPI
OHCI_RH_SetFeaturePortPower(IN PVOID ohciExtension,IN USHORT Port)218 OHCI_RH_SetFeaturePortPower(IN PVOID ohciExtension,
219 IN USHORT Port)
220 {
221 POHCI_EXTENSION OhciExtension;
222 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
223 PULONG PortStatusReg;
224 OHCI_REG_RH_PORT_STATUS PortStatus;
225
226 OhciExtension = ohciExtension;
227
228 DPRINT("OHCI_RH_SetFeaturePortPower: OhciExtension - %p, Port - %x\n",
229 OhciExtension,
230 Port);
231
232 ASSERT(Port > 0);
233
234 OperationalRegs = OhciExtension->OperationalRegs;
235 PortStatusReg = (PULONG)&OperationalRegs->HcRhPortStatus[Port-1];
236
237 PortStatus.AsULONG = 0;
238 PortStatus.SetPortPower = 1;
239
240 WRITE_REGISTER_ULONG(PortStatusReg, PortStatus.AsULONG);
241
242 return MP_STATUS_SUCCESS;
243 }
244
245 MPSTATUS
246 NTAPI
OHCI_RH_SetFeaturePortEnable(IN PVOID ohciExtension,IN USHORT Port)247 OHCI_RH_SetFeaturePortEnable(IN PVOID ohciExtension,
248 IN USHORT Port)
249 {
250 POHCI_EXTENSION OhciExtension;
251 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
252 PULONG PortStatusReg;
253 OHCI_REG_RH_PORT_STATUS PortStatus;
254
255 OhciExtension = ohciExtension;
256
257 DPRINT("OHCI_RH_SetFeaturePortEnable: OhciExtension - %p, Port - %x\n",
258 OhciExtension,
259 Port);
260
261 ASSERT(Port > 0);
262
263 OperationalRegs = OhciExtension->OperationalRegs;
264 PortStatusReg = (PULONG)&OperationalRegs->HcRhPortStatus[Port-1];
265
266 PortStatus.AsULONG = 0;
267 PortStatus.SetPortEnable = 1;
268
269 WRITE_REGISTER_ULONG(PortStatusReg, PortStatus.AsULONG);
270
271 return MP_STATUS_SUCCESS;
272 }
273
274 MPSTATUS
275 NTAPI
OHCI_RH_SetFeaturePortSuspend(IN PVOID ohciExtension,IN USHORT Port)276 OHCI_RH_SetFeaturePortSuspend(IN PVOID ohciExtension,
277 IN USHORT Port)
278 {
279 POHCI_EXTENSION OhciExtension;
280 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
281 PULONG PortStatusReg;
282 OHCI_REG_RH_PORT_STATUS PortStatus;
283
284 OhciExtension = ohciExtension;
285
286 DPRINT("OHCI_RH_SetFeaturePortSuspend: OhciExtension - %p, Port - %x\n",
287 OhciExtension,
288 Port);
289
290 ASSERT(Port > 0);
291
292 OperationalRegs = OhciExtension->OperationalRegs;
293 PortStatusReg = (PULONG)&OperationalRegs->HcRhPortStatus[Port-1];
294
295 PortStatus.AsULONG = 0;
296 PortStatus.SetPortSuspend = 1;
297
298 WRITE_REGISTER_ULONG(PortStatusReg, PortStatus.AsULONG);
299
300 return MP_STATUS_SUCCESS;
301 }
302
303 MPSTATUS
304 NTAPI
OHCI_RH_ClearFeaturePortEnable(IN PVOID ohciExtension,IN USHORT Port)305 OHCI_RH_ClearFeaturePortEnable(IN PVOID ohciExtension,
306 IN USHORT Port)
307 {
308 POHCI_EXTENSION OhciExtension;
309 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
310 PULONG PortStatusReg;
311 OHCI_REG_RH_PORT_STATUS PortStatus;
312
313 OhciExtension = ohciExtension;
314
315 DPRINT("OHCI_RH_ClearFeaturePortEnable: OhciExtension - %p, Port - %x\n",
316 OhciExtension,
317 Port);
318
319 ASSERT(Port > 0);
320
321 OperationalRegs = OhciExtension->OperationalRegs;
322 PortStatusReg = (PULONG)&OperationalRegs->HcRhPortStatus[Port-1];
323
324 PortStatus.AsULONG = 0;
325 PortStatus.ClearPortEnable = 1;
326
327 WRITE_REGISTER_ULONG(PortStatusReg, PortStatus.AsULONG);
328
329 return MP_STATUS_SUCCESS;
330 }
331
332 MPSTATUS
333 NTAPI
OHCI_RH_ClearFeaturePortPower(IN PVOID ohciExtension,IN USHORT Port)334 OHCI_RH_ClearFeaturePortPower(IN PVOID ohciExtension,
335 IN USHORT Port)
336 {
337 POHCI_EXTENSION OhciExtension;
338 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
339 PULONG PortStatusReg;
340 OHCI_REG_RH_PORT_STATUS PortStatus;
341
342 OhciExtension = ohciExtension;
343
344 DPRINT("OHCI_RH_ClearFeaturePortPower: OhciExtension - %p, Port - %x\n",
345 OhciExtension,
346 Port);
347
348 ASSERT(Port > 0);
349
350 OperationalRegs = OhciExtension->OperationalRegs;
351 PortStatusReg = (PULONG)&OperationalRegs->HcRhPortStatus[Port-1];
352
353 PortStatus.AsULONG = 0;
354 PortStatus.ClearPortPower = 1;
355
356 WRITE_REGISTER_ULONG(PortStatusReg, PortStatus.AsULONG);
357
358 return MP_STATUS_SUCCESS;
359 }
360
361 MPSTATUS
362 NTAPI
OHCI_RH_ClearFeaturePortSuspend(IN PVOID ohciExtension,IN USHORT Port)363 OHCI_RH_ClearFeaturePortSuspend(IN PVOID ohciExtension,
364 IN USHORT Port)
365 {
366 POHCI_EXTENSION OhciExtension;
367 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
368 PULONG PortStatusReg;
369 OHCI_REG_RH_PORT_STATUS PortStatus;
370
371 OhciExtension = ohciExtension;
372
373 DPRINT("OHCI_RH_ClearFeaturePortSuspend: OhciExtension - %p, Port - %x\n",
374 OhciExtension,
375 Port);
376
377 ASSERT(Port > 0);
378
379 OperationalRegs = OhciExtension->OperationalRegs;
380 PortStatusReg = (PULONG)&OperationalRegs->HcRhPortStatus[Port-1];
381
382 PortStatus.AsULONG = 0;
383 PortStatus.ClearSuspendStatus = 1;
384
385 WRITE_REGISTER_ULONG(PortStatusReg, PortStatus.AsULONG);
386
387 return MP_STATUS_SUCCESS;
388 }
389
390 MPSTATUS
391 NTAPI
OHCI_RH_ClearFeaturePortEnableChange(IN PVOID ohciExtension,IN USHORT Port)392 OHCI_RH_ClearFeaturePortEnableChange(IN PVOID ohciExtension,
393 IN USHORT Port)
394 {
395 POHCI_EXTENSION OhciExtension;
396 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
397 PULONG PortStatusReg;
398 OHCI_REG_RH_PORT_STATUS PortStatus;
399
400 OhciExtension = ohciExtension;
401
402 DPRINT("OHCI_RH_ClearFeaturePortEnableChange: ohciExtension - %p, Port - %x\n",
403 ohciExtension,
404 Port);
405
406 ASSERT(Port > 0);
407
408 OperationalRegs = OhciExtension->OperationalRegs;
409 PortStatusReg = (PULONG)&OperationalRegs->HcRhPortStatus[Port-1];
410
411 PortStatus.AsULONG = 0;
412 PortStatus.PortEnableStatusChange = 1;
413
414 WRITE_REGISTER_ULONG(PortStatusReg, PortStatus.AsULONG);
415
416 return MP_STATUS_SUCCESS;
417 }
418
419 MPSTATUS
420 NTAPI
OHCI_RH_ClearFeaturePortConnectChange(IN PVOID ohciExtension,IN USHORT Port)421 OHCI_RH_ClearFeaturePortConnectChange(IN PVOID ohciExtension,
422 IN USHORT Port)
423 {
424 POHCI_EXTENSION OhciExtension;
425 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
426 PULONG PortStatusReg;
427 OHCI_REG_RH_PORT_STATUS PortStatus;
428
429 OhciExtension = ohciExtension;
430
431 DPRINT("OHCI_RH_ClearFeaturePortConnectChange: OhciExtension - %p, Port - %x\n",
432 OhciExtension,
433 Port);
434
435 ASSERT(Port > 0);
436
437 OperationalRegs = OhciExtension->OperationalRegs;
438 PortStatusReg = (PULONG)&OperationalRegs->HcRhPortStatus[Port-1];
439
440 PortStatus.AsULONG = 0;
441 PortStatus.ConnectStatusChange = 1;
442
443 WRITE_REGISTER_ULONG(PortStatusReg, PortStatus.AsULONG);
444
445 return MP_STATUS_SUCCESS;
446 }
447
448 MPSTATUS
449 NTAPI
OHCI_RH_ClearFeaturePortResetChange(IN PVOID ohciExtension,IN USHORT Port)450 OHCI_RH_ClearFeaturePortResetChange(IN PVOID ohciExtension,
451 IN USHORT Port)
452 {
453 POHCI_EXTENSION OhciExtension;
454 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
455 PULONG PortStatusReg;
456 OHCI_REG_RH_PORT_STATUS PortStatus;
457
458 OhciExtension = ohciExtension;
459
460 DPRINT("OHCI_RH_ClearFeaturePortResetChange: OhciExtension - %p, Port - %x\n",
461 OhciExtension,
462 Port);
463
464 ASSERT(Port > 0);
465
466 OperationalRegs = OhciExtension->OperationalRegs;
467 PortStatusReg = (PULONG)&OperationalRegs->HcRhPortStatus[Port-1];
468
469 PortStatus.AsULONG = 0;
470 PortStatus.PortResetStatusChange = 1;
471
472 WRITE_REGISTER_ULONG(PortStatusReg, PortStatus.AsULONG);
473
474 return MP_STATUS_SUCCESS;
475 }
476
477 MPSTATUS
478 NTAPI
OHCI_RH_ClearFeaturePortSuspendChange(IN PVOID ohciExtension,IN USHORT Port)479 OHCI_RH_ClearFeaturePortSuspendChange(IN PVOID ohciExtension,
480 IN USHORT Port)
481 {
482 POHCI_EXTENSION OhciExtension;
483 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
484 PULONG PortStatusReg;
485 OHCI_REG_RH_PORT_STATUS PortStatus;
486
487 OhciExtension = ohciExtension;
488
489 DPRINT("OHCI_RH_ClearFeaturePortSuspendChange: OhciExtension - %p, Port - %x\n",
490 OhciExtension,
491 Port);
492
493 ASSERT(Port > 0);
494
495 OperationalRegs = OhciExtension->OperationalRegs;
496 PortStatusReg = (PULONG)&OperationalRegs->HcRhPortStatus[Port-1];
497
498 PortStatus.AsULONG = 0;
499 PortStatus.PortSuspendStatusChange = 1;
500
501 WRITE_REGISTER_ULONG(PortStatusReg, PortStatus.AsULONG);
502
503 return MP_STATUS_SUCCESS;
504 }
505
506 MPSTATUS
507 NTAPI
OHCI_RH_ClearFeaturePortOvercurrentChange(IN PVOID ohciExtension,IN USHORT Port)508 OHCI_RH_ClearFeaturePortOvercurrentChange(IN PVOID ohciExtension,
509 IN USHORT Port)
510 {
511 POHCI_EXTENSION OhciExtension;
512 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
513 PULONG PortStatusReg;
514 PULONG RhStatusReg;
515 OHCI_REG_RH_PORT_STATUS PortStatus;
516 OHCI_REG_RH_STATUS RhStatus;
517
518 OhciExtension = ohciExtension;
519
520 DPRINT("OHCI_RH_ClearFeaturePortOvercurrentChange: OhciExtension - %p, Port - %x\n",
521 OhciExtension,
522 Port);
523
524 OperationalRegs = OhciExtension->OperationalRegs;
525
526 if (Port)
527 {
528 /* USBPORT_RECIPIENT_PORT */
529 PortStatus.AsULONG = 0;
530 PortStatus.PortOverCurrentIndicatorChange = 1;
531
532 PortStatusReg = (PULONG)&OperationalRegs->HcRhPortStatus[Port-1];
533 WRITE_REGISTER_ULONG(PortStatusReg, PortStatus.AsULONG);
534 }
535 else
536 {
537 /* USBPORT_RECIPIENT_HUB */
538 RhStatus.AsULONG = 0;
539 RhStatus.OverCurrentIndicatorChangeW = 1;
540
541 RhStatusReg = (PULONG)&OperationalRegs->HcRhStatus;
542 WRITE_REGISTER_ULONG(RhStatusReg, RhStatus.AsULONG);
543 }
544
545 return MP_STATUS_SUCCESS;
546 }
547
548 VOID
549 NTAPI
OHCI_RH_DisableIrq(IN PVOID ohciExtension)550 OHCI_RH_DisableIrq(IN PVOID ohciExtension)
551 {
552 POHCI_EXTENSION OhciExtension = ohciExtension;
553 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
554 PULONG InterruptDisableReg;
555 OHCI_REG_INTERRUPT_ENABLE_DISABLE InterruptDisable;
556
557 DPRINT("OHCI_RH_DisableIrq: OhciExtension - %p\n", OhciExtension);
558
559 OperationalRegs = OhciExtension->OperationalRegs;
560 InterruptDisableReg = (PULONG)&OperationalRegs->HcInterruptDisable;
561
562 InterruptDisable.AsULONG = 0;
563 InterruptDisable.RootHubStatusChange = 1;
564
565 WRITE_REGISTER_ULONG(InterruptDisableReg, InterruptDisable.AsULONG);
566 }
567
568 VOID
569 NTAPI
OHCI_RH_EnableIrq(IN PVOID ohciExtension)570 OHCI_RH_EnableIrq(IN PVOID ohciExtension)
571 {
572 POHCI_EXTENSION OhciExtension = ohciExtension;
573 POHCI_OPERATIONAL_REGISTERS OperationalRegs;
574 PULONG InterruptEnableReg;
575 OHCI_REG_INTERRUPT_ENABLE_DISABLE InterruptEnable;
576
577 DPRINT("OHCI_RH_EnableIrq: OhciExtension - %p\n", OhciExtension);
578
579 OperationalRegs = OhciExtension->OperationalRegs;
580 InterruptEnableReg = (PULONG)&OperationalRegs->HcInterruptEnable;
581
582 InterruptEnable.AsULONG = 0;
583 InterruptEnable.RootHubStatusChange = 1;
584
585 WRITE_REGISTER_ULONG(InterruptEnableReg, InterruptEnable.AsULONG);
586 }
587