VirtualBox

source: vbox/trunk/src/VBox/Devices/Input/DrvKeyboardQueue.cpp@ 89422

Last change on this file since 89422 was 82968, checked in by vboxsync, 5 years ago

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1/* $Id: DrvKeyboardQueue.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
2/** @file
3 * VBox input devices: Keyboard queue driver
4 */
5
6/*
7 * Copyright (C) 2006-2020 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18
19/*********************************************************************************************************************************
20* Header Files *
21*********************************************************************************************************************************/
22#define LOG_GROUP LOG_GROUP_DRV_KBD_QUEUE
23#include <VBox/vmm/pdmdrv.h>
24#include <iprt/assert.h>
25#include <iprt/uuid.h>
26
27#include "VBoxDD.h"
28
29
30/*********************************************************************************************************************************
31* Defined Constants And Macros *
32*********************************************************************************************************************************/
33/** Keyboard usage page bits to be OR-ed into the code. */
34#define HID_PG_KB_BITS 0x070000
35
36
37/*********************************************************************************************************************************
38* Structures and Typedefs *
39*********************************************************************************************************************************/
40
41/** Scancode translator state. */
42typedef enum {
43 SS_IDLE, /**< Starting state. */
44 SS_EXT, /**< E0 byte was received. */
45 SS_EXT1 /**< E1 byte was received. */
46} scan_state_t;
47
48/**
49 * Keyboard queue driver instance data.
50 *
51 * @implements PDMIKEYBOARDCONNECTOR
52 * @implements PDMIKEYBOARDPORT
53 */
54typedef struct DRVKBDQUEUE
55{
56 /** Pointer to the driver instance structure. */
57 PPDMDRVINS pDrvIns;
58 /** Pointer to the keyboard port interface of the driver/device above us. */
59 PPDMIKEYBOARDPORT pUpPort;
60 /** Pointer to the keyboard port interface of the driver/device below us. */
61 PPDMIKEYBOARDCONNECTOR pDownConnector;
62 /** Our keyboard connector interface. */
63 PDMIKEYBOARDCONNECTOR IConnector;
64 /** Our keyboard port interface. */
65 PDMIKEYBOARDPORT IPort;
66 /** The queue handle. */
67 PPDMQUEUE pQueue;
68 /** State of the scancode translation. */
69 scan_state_t XlatState;
70 /** Discard input when this flag is set. */
71 bool fInactive;
72 /** When VM is suspended, queue full errors are not fatal. */
73 bool fSuspended;
74} DRVKBDQUEUE, *PDRVKBDQUEUE;
75
76
77/**
78 * Keyboard queue item.
79 */
80typedef struct DRVKBDQUEUEITEM
81{
82 /** The core part owned by the queue manager. */
83 PDMQUEUEITEMCORE Core;
84 /** The keycode. */
85 uint32_t idUsage;
86} DRVKBDQUEUEITEM, *PDRVKBDQUEUEITEM;
87
88
89/*********************************************************************************************************************************
90* Global Variables *
91*********************************************************************************************************************************/
92
93/** Lookup table for converting PC/XT scan codes to USB HID usage codes. */
94static const uint8_t aScancode2Hid[] =
95{
96 0x00, 0x29, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, /* 00-07 */
97 0x24, 0x25, 0x26, 0x27, 0x2d, 0x2e, 0x2a, 0x2b, /* 08-1F */
98 0x14, 0x1a, 0x08, 0x15, 0x17, 0x1c, 0x18, 0x0c, /* 10-17 */
99 0x12, 0x13, 0x2f, 0x30, 0x28, 0xe0, 0x04, 0x16, /* 18-1F */
100 0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33, /* 20-27 */
101 0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19, /* 28-2F */
102 0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55, /* 30-37 */
103 0xe2, 0x2c, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, /* 38-3F */
104 0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f, /* 40-47 */
105 0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59, /* 48-4F */
106 0x5a, 0x5b, 0x62, 0x63, 0x46, 0x00, 0x64, 0x44, /* 50-57 */
107 0x45, 0x67, 0x00, 0x00, 0x8c, 0x00, 0x00, 0x00, /* 58-5F */
108 0x00, 0x00, 0x00, 0x00, 0x68, 0x69, 0x6a, 0x6b, /* 60-67 */
109 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x00, /* 68-6F */
110 0x88, 0x91, 0x90, 0x87, 0x00, 0x00, 0x00, 0x00, /* 70-77 */
111 0x00, 0x8a, 0x00, 0x8b, 0x00, 0x89, 0x85, 0x00 /* 78-7F */
112};
113
114/** Lookup table for extended scancodes (arrow keys etc.). */
115static const uint8_t aExtScan2Hid[] =
116{
117 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00-07 */
118 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 08-1F */
119 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 10-17 */
120 0x00, 0x00, 0x00, 0x00, 0x58, 0xe4, 0x00, 0x00, /* 18-1F */
121 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 20-27 */
122 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 28-2F */
123 0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x00, 0x46, /* 30-37 */
124 /* Sun-specific keys. Most of the XT codes are made up */
125 0xe6, 0x00, 0x00, 0x75, 0x76, 0x77, 0xA3, 0x78, /* 38-3F */
126 0x80, 0x81, 0x82, 0x79, 0x00, 0x00, 0x48, 0x4a, /* 40-47 */
127 0x52, 0x4b, 0x00, 0x50, 0x00, 0x4f, 0x00, 0x4d, /* 48-4F */
128 0x51, 0x4e, 0x49, 0x4c, 0x00, 0x00, 0x00, 0x00, /* 50-57 */
129 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, 0x66, 0x00, /* 58-5F */
130 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 60-67 */
131 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 68-6F */
132 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 70-77 */
133 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* 78-7F */
134};
135
136/**
137 * Convert a PC scan code to a USB HID usage byte.
138 *
139 * @param state Current state of the translator (scan_state_t).
140 * @param scanCode Incoming scan code.
141 * @param pUsage Pointer to usage; high bit set for key up events. The
142 * contents are only valid if returned state is SS_IDLE.
143 *
144 * @return scan_state_t New state of the translator.
145 */
146static scan_state_t ScancodeToHidUsage(scan_state_t state, uint8_t scanCode, uint32_t *pUsage)
147{
148 uint32_t keyUp;
149 uint8_t usage;
150
151 Assert(pUsage);
152
153 /* Isolate the scan code and key break flag. */
154 keyUp = (scanCode & 0x80) << 24;
155
156 switch (state) {
157 case SS_IDLE:
158 if (scanCode == 0xE0) {
159 state = SS_EXT;
160 } else if (scanCode == 0xE1) {
161 state = SS_EXT1;
162 } else {
163 usage = aScancode2Hid[scanCode & 0x7F];
164 *pUsage = usage | keyUp | HID_PG_KB_BITS;
165 /* Remain in SS_IDLE state. */
166 }
167 break;
168 case SS_EXT:
169 usage = aExtScan2Hid[scanCode & 0x7F];
170 *pUsage = usage | keyUp | HID_PG_KB_BITS;
171 state = SS_IDLE;
172 break;
173 case SS_EXT1:
174 /* The sequence is E1 1D 45 E1 9D C5. We take the easy way out and remain
175 * in the SS_EXT1 state until 45 or C5 is received.
176 */
177 if ((scanCode & 0x7F) == 0x45) {
178 *pUsage = 0x48 | HID_PG_KB_BITS;
179 if (scanCode == 0xC5)
180 *pUsage |= keyUp;
181 state = SS_IDLE;
182 }
183 /* Else remain in SS_EXT1 state. */
184 break;
185 }
186 return state;
187}
188
189
190/* -=-=-=-=- IBase -=-=-=-=- */
191
192/**
193 * @interface_method_impl{PDMIBASE,pfnQueryInterface}
194 */
195static DECLCALLBACK(void *) drvKbdQueueQueryInterface(PPDMIBASE pInterface, const char *pszIID)
196{
197 PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
198 PDRVKBDQUEUE pThis = PDMINS_2_DATA(pDrvIns, PDRVKBDQUEUE);
199
200 PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
201 PDMIBASE_RETURN_INTERFACE(pszIID, PDMIKEYBOARDCONNECTOR, &pThis->IConnector);
202 PDMIBASE_RETURN_INTERFACE(pszIID, PDMIKEYBOARDPORT, &pThis->IPort);
203 return NULL;
204}
205
206
207/* -=-=-=-=- IKeyboardPort -=-=-=-=- */
208
209/** Converts a pointer to DRVKBDQUEUE::IPort to a DRVKBDQUEUE pointer. */
210#define IKEYBOARDPORT_2_DRVKBDQUEUE(pInterface) ( (PDRVKBDQUEUE)((char *)(pInterface) - RT_UOFFSETOF(DRVKBDQUEUE, IPort)) )
211
212
213/**
214 * @interface_method_impl{PDMIKEYBOARDPORT,pfnPutEventScan}
215 *
216 * Because of the event queueing the EMT context requirement is lifted.
217 * @thread Any thread.
218 */
219static DECLCALLBACK(int) drvKbdQueuePutEventScan(PPDMIKEYBOARDPORT pInterface, uint8_t u8ScanCode)
220{
221 PDRVKBDQUEUE pDrv = IKEYBOARDPORT_2_DRVKBDQUEUE(pInterface);
222 /* Ignore any attempt to send events if queue is inactive. */
223 if (pDrv->fInactive)
224 return VINF_SUCCESS;
225
226 uint32_t idUsage = 0;
227 pDrv->XlatState = ScancodeToHidUsage(pDrv->XlatState, u8ScanCode, &idUsage);
228
229 if (pDrv->XlatState == SS_IDLE)
230 {
231 PDRVKBDQUEUEITEM pItem = (PDRVKBDQUEUEITEM)PDMQueueAlloc(pDrv->pQueue);
232 if (pItem)
233 {
234 /*
235 * Work around incredibly poorly desgined Korean keyboards which
236 * only send break events for Hangul/Hanja keys -- convert a lone
237 * key up into a key up/key down sequence.
238 */
239 if (idUsage == UINT32_C(0x80000090) || idUsage == UINT32_C(0x80000091))
240 {
241 PDRVKBDQUEUEITEM pItem2 = (PDRVKBDQUEUEITEM)PDMQueueAlloc(pDrv->pQueue);
242 /*
243 * NB: If there's no room in the queue, we will drop the faked
244 * key down event. Probably less bad than the alternatives.
245 */
246 if (pItem2)
247 {
248 /* Manufacture a key down event. */
249 pItem2->idUsage = idUsage & ~UINT32_C(0x80000000);
250 PDMQueueInsert(pDrv->pQueue, &pItem2->Core);
251 }
252 }
253
254 pItem->idUsage = idUsage;
255 PDMQueueInsert(pDrv->pQueue, &pItem->Core);
256
257 return VINF_SUCCESS;
258 }
259 if (!pDrv->fSuspended)
260 AssertMsgFailed(("drvKbdQueuePutEventScan: Queue is full!!!!\n"));
261 return VERR_PDM_NO_QUEUE_ITEMS;
262 }
263 else
264 return VINF_SUCCESS;
265}
266
267
268/**
269 * @interface_method_impl{PDMIKEYBOARDPORT,pfnPutEventHid}
270 *
271 * Because of the event queueing the EMT context requirement is lifted.
272 * @thread Any thread.
273 */
274static DECLCALLBACK(int) drvKbdQueuePutEventHid(PPDMIKEYBOARDPORT pInterface, uint32_t idUsage)
275{
276 PDRVKBDQUEUE pDrv = IKEYBOARDPORT_2_DRVKBDQUEUE(pInterface);
277 /* Ignore any attempt to send events if queue is inactive. */
278 if (pDrv->fInactive)
279 return VINF_SUCCESS;
280
281 PDRVKBDQUEUEITEM pItem = (PDRVKBDQUEUEITEM)PDMQueueAlloc(pDrv->pQueue);
282 if (pItem)
283 {
284 pItem->idUsage = idUsage;
285 PDMQueueInsert(pDrv->pQueue, &pItem->Core);
286
287 return VINF_SUCCESS;
288 }
289 if (!pDrv->fSuspended)
290 AssertMsgFailed(("drvKbdQueuePutEventHid: Queue is full!!!!\n"));
291 return VERR_PDM_NO_QUEUE_ITEMS;
292}
293
294
295/* -=-=-=-=- IConnector -=-=-=-=- */
296
297#define PPDMIKEYBOARDCONNECTOR_2_DRVKBDQUEUE(pInterface) ( (PDRVKBDQUEUE)((char *)(pInterface) - RT_UOFFSETOF(DRVKBDQUEUE, IConnector)) )
298
299
300/**
301 * Pass LED status changes from the guest thru to the frontend driver.
302 *
303 * @param pInterface Pointer to the keyboard connector interface structure.
304 * @param enmLeds The new LED mask.
305 */
306static DECLCALLBACK(void) drvKbdPassThruLedsChange(PPDMIKEYBOARDCONNECTOR pInterface, PDMKEYBLEDS enmLeds)
307{
308 PDRVKBDQUEUE pDrv = PPDMIKEYBOARDCONNECTOR_2_DRVKBDQUEUE(pInterface);
309 pDrv->pDownConnector->pfnLedStatusChange(pDrv->pDownConnector, enmLeds);
310}
311
312/**
313 * Pass keyboard state changes from the guest thru to the frontend driver.
314 *
315 * @param pInterface Pointer to the keyboard connector interface structure.
316 * @param fActive The new active/inactive state.
317 */
318static DECLCALLBACK(void) drvKbdPassThruSetActive(PPDMIKEYBOARDCONNECTOR pInterface, bool fActive)
319{
320 PDRVKBDQUEUE pDrv = PPDMIKEYBOARDCONNECTOR_2_DRVKBDQUEUE(pInterface);
321
322 AssertPtr(pDrv->pDownConnector->pfnSetActive);
323 pDrv->pDownConnector->pfnSetActive(pDrv->pDownConnector, fActive);
324}
325
326/**
327 * Flush the keyboard queue if there are pending events.
328 *
329 * @param pInterface Pointer to the keyboard connector interface structure.
330 */
331static DECLCALLBACK(void) drvKbdFlushQueue(PPDMIKEYBOARDCONNECTOR pInterface)
332{
333 PDRVKBDQUEUE pDrv = PPDMIKEYBOARDCONNECTOR_2_DRVKBDQUEUE(pInterface);
334
335 AssertPtr(pDrv->pQueue);
336 PDMQueueFlushIfNecessary(pDrv->pQueue);
337}
338
339
340/* -=-=-=-=- queue -=-=-=-=- */
341
342/**
343 * Queue callback for processing a queued item.
344 *
345 * @returns Success indicator.
346 * If false the item will not be removed and the flushing will stop.
347 * @param pDrvIns The driver instance.
348 * @param pItemCore Pointer to the queue item to process.
349 */
350static DECLCALLBACK(bool) drvKbdQueueConsumer(PPDMDRVINS pDrvIns, PPDMQUEUEITEMCORE pItemCore)
351{
352 PDRVKBDQUEUE pThis = PDMINS_2_DATA(pDrvIns, PDRVKBDQUEUE);
353 PDRVKBDQUEUEITEM pItem = (PDRVKBDQUEUEITEM)pItemCore;
354 int rc = pThis->pUpPort->pfnPutEventHid(pThis->pUpPort, pItem->idUsage);
355 return RT_SUCCESS(rc);
356}
357
358
359/* -=-=-=-=- driver interface -=-=-=-=- */
360
361/**
362 * Power On notification.
363 *
364 * @returns VBox status code.
365 * @param pDrvIns The drive instance data.
366 */
367static DECLCALLBACK(void) drvKbdQueuePowerOn(PPDMDRVINS pDrvIns)
368{
369 PDRVKBDQUEUE pThis = PDMINS_2_DATA(pDrvIns, PDRVKBDQUEUE);
370 pThis->fInactive = false;
371}
372
373
374/**
375 * Reset notification.
376 *
377 * @returns VBox status code.
378 * @param pDrvIns The drive instance data.
379 */
380static DECLCALLBACK(void) drvKbdQueueReset(PPDMDRVINS pDrvIns)
381{
382 //PDRVKBDQUEUE pThis = PDMINS_2_DATA(pDrvIns, PDRVKBDQUEUE);
383 /** @todo purge the queue on reset. */
384 RT_NOREF(pDrvIns);
385}
386
387
388/**
389 * Suspend notification.
390 *
391 * @returns VBox status code.
392 * @param pDrvIns The drive instance data.
393 */
394static DECLCALLBACK(void) drvKbdQueueSuspend(PPDMDRVINS pDrvIns)
395{
396 PDRVKBDQUEUE pThis = PDMINS_2_DATA(pDrvIns, PDRVKBDQUEUE);
397 pThis->fSuspended = true;
398}
399
400
401/**
402 * Resume notification.
403 *
404 * @returns VBox status code.
405 * @param pDrvIns The drive instance data.
406 */
407static DECLCALLBACK(void) drvKbdQueueResume(PPDMDRVINS pDrvIns)
408{
409 PDRVKBDQUEUE pThis = PDMINS_2_DATA(pDrvIns, PDRVKBDQUEUE);
410 pThis->fInactive = false;
411 pThis->fSuspended = false;
412}
413
414
415/**
416 * Power Off notification.
417 *
418 * @param pDrvIns The drive instance data.
419 */
420static DECLCALLBACK(void) drvKbdQueuePowerOff(PPDMDRVINS pDrvIns)
421{
422 PDRVKBDQUEUE pThis = PDMINS_2_DATA(pDrvIns, PDRVKBDQUEUE);
423 pThis->fInactive = true;
424}
425
426
427/**
428 * Construct a keyboard driver instance.
429 *
430 * @copydoc FNPDMDRVCONSTRUCT
431 */
432static DECLCALLBACK(int) drvKbdQueueConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
433{
434 PDRVKBDQUEUE pDrv = PDMINS_2_DATA(pDrvIns, PDRVKBDQUEUE);
435 LogFlow(("drvKbdQueueConstruct: iInstance=%d\n", pDrvIns->iInstance));
436 PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
437
438 /*
439 * Validate configuration.
440 */
441 if (!CFGMR3AreValuesValid(pCfg, "QueueSize\0Interval\0"))
442 return VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES;
443
444 /*
445 * Init basic data members and interfaces.
446 */
447 pDrv->fInactive = true;
448 pDrv->fSuspended = false;
449 pDrv->XlatState = SS_IDLE;
450 /* IBase. */
451 pDrvIns->IBase.pfnQueryInterface = drvKbdQueueQueryInterface;
452 /* IKeyboardConnector. */
453 pDrv->IConnector.pfnLedStatusChange = drvKbdPassThruLedsChange;
454 pDrv->IConnector.pfnSetActive = drvKbdPassThruSetActive;
455 pDrv->IConnector.pfnFlushQueue = drvKbdFlushQueue;
456 /* IKeyboardPort. */
457 pDrv->IPort.pfnPutEventScan = drvKbdQueuePutEventScan;
458 pDrv->IPort.pfnPutEventHid = drvKbdQueuePutEventHid;
459
460 /*
461 * Get the IKeyboardPort interface of the above driver/device.
462 */
463 pDrv->pUpPort = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIKEYBOARDPORT);
464 if (!pDrv->pUpPort)
465 {
466 AssertMsgFailed(("Configuration error: No keyboard port interface above!\n"));
467 return VERR_PDM_MISSING_INTERFACE_ABOVE;
468 }
469
470 /*
471 * Attach driver below and query it's connector interface.
472 */
473 PPDMIBASE pDownBase;
474 int rc = PDMDrvHlpAttach(pDrvIns, fFlags, &pDownBase);
475 if (RT_FAILURE(rc))
476 {
477 AssertMsgFailed(("Failed to attach driver below us! rc=%Rra\n", rc));
478 return rc;
479 }
480 pDrv->pDownConnector = PDMIBASE_QUERY_INTERFACE(pDownBase, PDMIKEYBOARDCONNECTOR);
481 if (!pDrv->pDownConnector)
482 {
483 AssertMsgFailed(("Configuration error: No keyboard connector interface below!\n"));
484 return VERR_PDM_MISSING_INTERFACE_BELOW;
485 }
486
487 /*
488 * Create the queue.
489 */
490 uint32_t cMilliesInterval = 0;
491 rc = CFGMR3QueryU32(pCfg, "Interval", &cMilliesInterval);
492 if (rc == VERR_CFGM_VALUE_NOT_FOUND)
493 cMilliesInterval = 0;
494 else if (RT_FAILURE(rc))
495 {
496 AssertMsgFailed(("Configuration error: 32-bit \"Interval\" -> rc=%Rrc\n", rc));
497 return rc;
498 }
499
500 uint32_t cItems = 0;
501 rc = CFGMR3QueryU32(pCfg, "QueueSize", &cItems);
502 if (rc == VERR_CFGM_VALUE_NOT_FOUND)
503 cItems = 128;
504 else if (RT_FAILURE(rc))
505 {
506 AssertMsgFailed(("Configuration error: 32-bit \"QueueSize\" -> rc=%Rrc\n", rc));
507 return rc;
508 }
509
510 rc = PDMDrvHlpQueueCreate(pDrvIns, sizeof(DRVKBDQUEUEITEM), cItems, cMilliesInterval, drvKbdQueueConsumer, "Keyboard", &pDrv->pQueue);
511 if (RT_FAILURE(rc))
512 {
513 AssertMsgFailed(("Failed to create driver: cItems=%d cMilliesInterval=%d rc=%Rrc\n", cItems, cMilliesInterval, rc));
514 return rc;
515 }
516
517 return VINF_SUCCESS;
518}
519
520
521/**
522 * Keyboard queue driver registration record.
523 */
524const PDMDRVREG g_DrvKeyboardQueue =
525{
526 /* u32Version */
527 PDM_DRVREG_VERSION,
528 /* szName */
529 "KeyboardQueue",
530 /* szRCMod */
531 "",
532 /* szR0Mod */
533 "",
534 /* pszDescription */
535 "Keyboard queue driver to plug in between the key source and the device to do queueing and inter-thread transport.",
536 /* fFlags */
537 PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
538 /* fClass. */
539 PDM_DRVREG_CLASS_KEYBOARD,
540 /* cMaxInstances */
541 ~0U,
542 /* cbInstance */
543 sizeof(DRVKBDQUEUE),
544 /* pfnConstruct */
545 drvKbdQueueConstruct,
546 /* pfnRelocate */
547 NULL,
548 /* pfnDestruct */
549 NULL,
550 /* pfnIOCtl */
551 NULL,
552 /* pfnPowerOn */
553 drvKbdQueuePowerOn,
554 /* pfnReset */
555 drvKbdQueueReset,
556 /* pfnSuspend */
557 drvKbdQueueSuspend,
558 /* pfnResume */
559 drvKbdQueueResume,
560 /* pfnAttach */
561 NULL,
562 /* pfnDetach */
563 NULL,
564 /* pfnPowerOff */
565 drvKbdQueuePowerOff,
566 /* pfnSoftReset */
567 NULL,
568 /* u32EndVersion */
569 PDM_DRVREG_VERSION
570};
571
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