UsbKbd.cpp@ 26669

Last change on this file since 26669 was 26669, checked in by vboxsync, 15 years ago
Devices/Input/UsbKbd.cpp: warning, style
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1	/** @file
2	* UsbKbd - USB Human Interface Device Emulation (Keyboard).
3	*/
4
5	/*
6	* Copyright (C) 2007-2010 Sun Microsystems, Inc.
7	*
8	* Sun Microsystems, Inc. confidential
9	* All rights reserved
10	*/
11
12	/*******************************************************************************
13	* Header Files *
14	*******************************************************************************/
15	#define LOG_GROUP LOG_GROUP_USB_MSD
16	#include <VBox/pdmusb.h>
17	#include <VBox/log.h>
18	#include <VBox/err.h>
19	#include <iprt/assert.h>
20	#include <iprt/critsect.h>
21	#include <iprt/mem.h>
22	#include <iprt/semaphore.h>
23	#include <iprt/string.h>
24	#include <iprt/uuid.h>
25	#include "../Builtins.h"
26
27
28	/*******************************************************************************
29	* Defined Constants And Macros *
30	*******************************************************************************/
31	/** @name USB HID string IDs
32	* @{ */
33	#define USBHID_STR_ID_MANUFACTURER 1
34	#define USBHID_STR_ID_PRODUCT 2
35	/** @} */
36
37	/** @name USB HID specific descriptor types
38	* @{ */
39	#define DT_IF_HID_REPORT 0x22
40	/** @} */
41
42	/** @name USB HID vendor and product IDs
43	* @{ */
44	#define VBOX_USB_VENDOR 0x80EE
45	#define USBHID_PID_KEYBOARD 0x0010
46	/** @} */
47
48	/** @name USB HID class specific requests
49	* @{ */
50	#define HID_REQ_GET_REPORT 0x01
51	#define HID_REQ_GET_IDLE 0x02
52	#define HID_REQ_SET_REPORT 0x09
53	#define HID_REQ_SET_IDLE 0x0A
54	/** @} */
55
56	/*******************************************************************************
57	* Structures and Typedefs *
58	*******************************************************************************/
59
60	/**
61	* The USB HID request state.
62	*/
63	typedef enum USBHIDREQSTATE
64	{
65	/** Invalid status. */
66	USBHIDREQSTATE_INVALID = 0,
67	/** Ready to receive a new read request. */
68	USBHIDREQSTATE_READY,
69	/** Have (more) data for the host. */
70	USBHIDREQSTATE_DATA_TO_HOST,
71	/** Waiting to supply status information to the host. */
72	USBHIDREQSTATE_STATUS,
73	/** The end of the valid states. */
74	USBHIDREQSTATE_END
75	} USBHIDREQSTATE;
76
77
78	/**
79	* Endpoint status data.
80	*/
81	typedef struct USBHIDEP
82	{
83	bool fHalted;
84	} USBHIDEP;
85	/** Pointer to the endpoint status. */
86	typedef USBHIDEP *PUSBHIDEP;
87
88
89	/**
90	* A URB queue.
91	*/
92	typedef struct USBHIDURBQUEUE
93	{
94	/** The head pointer. */
95	PVUSBURB pHead;
96	/** Where to insert the next entry. */
97	PVUSBURB *ppTail;
98	} USBHIDURBQUEUE;
99	/** Pointer to a URB queue. */
100	typedef USBHIDURBQUEUE *PUSBHIDURBQUEUE;
101	/** Pointer to a const URB queue. */
102	typedef USBHIDURBQUEUE const *PCUSBHIDURBQUEUE;
103
104
105	/**
106	* The USB HID report structure for regular keys.
107	*/
108	typedef struct USBHIDK_REPORT
109	{
110	uint8_t ShiftState; /* Modifier keys bitfield */
111	uint8_t Reserved; /* Currently unused */
112	uint8_t aKeys[6]; /* Normal keys */
113	} USBHIDK_REPORT, *PUSBHIDK_REPORT;
114
115	/**
116	* The USB HID instance data.
117	*/
118	typedef struct USBHID
119	{
120	/** Pointer back to the PDM USB Device instance structure. */
121	PPDMUSBINS pUsbIns;
122	/** Critical section protecting the device state. */
123	RTCRITSECT CritSect;
124
125	/** The current configuration.
126	* (0 - default, 1 - the one supported configuration, i.e configured.) */
127	uint8_t bConfigurationValue;
128	/** USB HID Idle value..
129	* (0 - only report state change, !=0 - report in bIdle * 4ms intervals.) */
130	uint8_t bIdle;
131	/** Endpoint 0 is the default control pipe, 1 is the dev->host interrupt one. */
132	USBHIDEP aEps[2];
133	/** The state of the HID (state machine).*/
134	USBHIDREQSTATE enmState;
135
136	/** HID report reflecting the current keyboard state. */
137	USBHIDK_REPORT Report;
138
139	/** Pending to-host queue.
140	* The URBs waiting here are waiting for data to become available.
141	*/
142	USBHIDURBQUEUE ToHostQueue;
143
144	/** Done queue
145	* The URBs stashed here are waiting to be reaped. */
146	USBHIDURBQUEUE DoneQueue;
147	/** Signalled when adding an URB to the done queue and fHaveDoneQueueWaiter
148	* is set. */
149	RTSEMEVENT hEvtDoneQueue;
150	/** Someone is waiting on the done queue. */
151	bool fHaveDoneQueueWaiter;
152
153	/**
154	* Keyboard port - LUN#0.
155	*
156	* @implements PDMIBASE
157	* @implements PDMIKEYBOARDPORT
158	*/
159	struct
160	{
161	/** The base interface for the keyboard port. */
162	PDMIBASE IBase;
163	/** The keyboard port base interface. */
164	PDMIKEYBOARDPORT IPort;
165
166	/** The base interface of the attached keyboard driver. */
167	R3PTRTYPE(PPDMIBASE) pDrvBase;
168	/** The keyboard interface of the attached keyboard driver. */
169	R3PTRTYPE(PPDMIKEYBOARDCONNECTOR) pDrv;
170	} Lun0;
171
172	} USBHID;
173	/** Pointer to the USB HID instance data. */
174	typedef USBHID *PUSBHID;
175
176	/*******************************************************************************
177	* Global Variables *
178	*******************************************************************************/
179	static const PDMUSBDESCCACHESTRING g_aUsbHidStrings_en_US[] =
180	{
181	{ USBHID_STR_ID_MANUFACTURER, "VirtualBox" },
182	{ USBHID_STR_ID_PRODUCT, "USB Keyboard" },
183	};
184
185	static const PDMUSBDESCCACHELANG g_aUsbHidLanguages[] =
186	{
187	{ 0x0409, RT_ELEMENTS(g_aUsbHidStrings_en_US), g_aUsbHidStrings_en_US }
188	};
189
190	static const VUSBDESCENDPOINTEX g_aUsbHidEndpointDescs[] =
191	{
192	{
193	{
194	/* .bLength = */ sizeof(VUSBDESCENDPOINT),
195	/* .bDescriptorType = */ VUSB_DT_ENDPOINT,
196	/* .bEndpointAddress = / 0x81 / ep=1, in */,
197	/* .bmAttributes = / 3 / interrupt */,
198	/* .wMaxPacketSize = */ 8,
199	/* .bInterval = */ 10,
200	},
201	/* .pvMore = */ NULL,
202	/* .pvClass = */ NULL,
203	/* .cbClass = */ 0
204	},
205	};
206
207	/* HID report descriptor. */
208	static const uint8_t g_UsbHidReportDesc[] =
209	{
210	/* Usage Page / 0x05, 0x01, / Generic Desktop */
211	/* Usage / 0x09, 0x06, / Keyboard */
212	/* Collection / 0xA1, 0x01, / Application */
213	/* Usage Page / 0x05, 0x07, / Keyboard */
214	/* Usage Minimum / 0x19, 0xE0, / Left Ctrl Key */
215	/* Usage Maximum / 0x29, 0xE7, / Right GUI Key */
216	/* Logical Minimum / 0x15, 0x00, / 0 */
217	/* Logical Maximum / 0x25, 0x01, / 1 */
218	/* Report Count / 0x95, 0x08, / 8 */
219	/* Report Size / 0x75, 0x01, / 1 */
220	/* Input / 0x81, 0x02, / Data, Value, Absolute, Bit field */
221	/* Report Count / 0x95, 0x01, / 1 */
222	/* Report Size / 0x75, 0x08, / 8 (padding bits) */
223	/* Input / 0x81, 0x01, / Constant, Array, Absolute, Bit field */
224	/* Report Count / 0x95, 0x05, / 5 */
225	/* Report Size / 0x75, 0x01, / 1 */
226	/* Usage Page / 0x05, 0x08, / LEDs */
227	/* Usage Minimum / 0x19, 0x01, / Num Lock */
228	/* Usage Maximum / 0x29, 0x05, / Kana */
229	/* Output / 0x91, 0x02, / Data, Value, Absolute, Non-volatile,Bit field */
230	/* Report Count / 0x95, 0x01, / 1 */
231	/* Report Size / 0x75, 0x03, / 3 */
232	/* Output / 0x91, 0x01, / Constant, Value, Absolute, Non-volatile, Bit field */
233	/* Report Count / 0x95, 0x06, / 6 */
234	/* Report Size / 0x75, 0x08, / 8 */
235	/* Logical Minimum / 0x15, 0x00, / 0 */
236	/* Logical Maximum / 0x26, 0xFF,0x00,/ 255 */
237	/* Usage Page / 0x05, 0x07, / Keyboard */
238	/* Usage Minimum / 0x19, 0x00, / 0 */
239	/* Usage Maximum / 0x29, 0xFF,0x00,/ 255 */
240	/* Input / 0x81, 0x00, / Data, Array, Absolute, Bit field */
241	/* End Collection */ 0xC0,
242	};
243
244	/* Additional HID class interface descriptor. */
245	static const uint8_t g_UsbHidIfHidDesc[] =
246	{
247	/* .bLength = */ 0x09,
248	/* .bDescriptorType = / 0x21, / HID */
249	/* .bcdHID = / 0x10, 0x01, / 1.1 */
250	/* .bCountryCode = / 0x0D, / International (ISO) */
251	/* .bNumDescriptors = */ 1,
252	/* .bDescriptorType = / 0x22, / Report */
253	/* .wDescriptorLength = */ sizeof(g_UsbHidReportDesc), 0x00
254	};
255
256	static const VUSBDESCINTERFACEEX g_UsbHidInterfaceDesc =
257	{
258	{
259	/* .bLength = */ sizeof(VUSBDESCINTERFACE),
260	/* .bDescriptorType = */ VUSB_DT_INTERFACE,
261	/* .bInterfaceNumber = */ 0,
262	/* .bAlternateSetting = */ 0,
263	/* .bNumEndpoints = */ 1,
264	/* .bInterfaceClass = / 3 / HID */,
265	/* .bInterfaceSubClass = / 1 / Boot Interface */,
266	/* .bInterfaceProtocol = / 1 / Keyboard */,
267	/* .iInterface = */ 0
268	},
269	/* .pvMore = */ NULL,
270	/* .pvClass = */ &g_UsbHidIfHidDesc,
271	/* .cbClass = */ sizeof(g_UsbHidIfHidDesc),
272	&g_aUsbHidEndpointDescs[0]
273	};
274
275	static const VUSBINTERFACE g_aUsbHidInterfaces[] =
276	{
277	{ &g_UsbHidInterfaceDesc, /* .cSettings = */ 1 },
278	};
279
280	static const VUSBDESCCONFIGEX g_UsbHidConfigDesc =
281	{
282	{
283	/* .bLength = */ sizeof(VUSBDESCCONFIG),
284	/* .bDescriptorType = */ VUSB_DT_CONFIG,
285	/* .wTotalLength = / 0 / recalculated on read */,
286	/* .bNumInterfaces = */ RT_ELEMENTS(g_aUsbHidInterfaces),
287	/* .bConfigurationValue =*/ 1,
288	/* .iConfiguration = */ 0,
289	/* .bmAttributes = */ RT_BIT(7),
290	/* .MaxPower = / 50 / 100mA */
291	},
292	NULL,
293	&g_aUsbHidInterfaces[0]
294	};
295
296	static const VUSBDESCDEVICE g_UsbHidDeviceDesc =
297	{
298	/* .bLength = */ sizeof(g_UsbHidDeviceDesc),
299	/* .bDescriptorType = */ VUSB_DT_DEVICE,
300	/* .bcdUsb = / 0x110, / 1.1 */
301	/* .bDeviceClass = / 0 / Class specified in the interface desc. */,
302	/* .bDeviceSubClass = / 0 / Subclass specified in the interface desc. */,
303	/* .bDeviceProtocol = / 0 / Protocol specified in the interface desc. */,
304	/* .bMaxPacketSize0 = */ 8,
305	/* .idVendor = */ VBOX_USB_VENDOR,
306	/* .idProduct = */ USBHID_PID_KEYBOARD,
307	/* .bcdDevice = / 0x0100, / 1.0 */
308	/* .iManufacturer = */ USBHID_STR_ID_MANUFACTURER,
309	/* .iProduct = */ USBHID_STR_ID_PRODUCT,
310	/* .iSerialNumber = */ 0,
311	/* .bNumConfigurations = */ 1
312	};
313
314	static const PDMUSBDESCCACHE g_UsbHidDescCache =
315	{
316	/* .pDevice = */ &g_UsbHidDeviceDesc,
317	/* .paConfigs = */ &g_UsbHidConfigDesc,
318	/* .paLanguages = */ g_aUsbHidLanguages,
319	/* .cLanguages = */ RT_ELEMENTS(g_aUsbHidLanguages),
320	/* .fUseCachedDescriptors = */ true,
321	/* .fUseCachedStringsDescriptors = */ true
322	};
323
324
325	/*******************************************************************************
326	* Internal Functions *
327	*******************************************************************************/
328
329	/**
330	* Initializes an URB queue.
331	*
332	* @param pQueue The URB queue.
333	*/
334	static void usbHidQueueInit(PUSBHIDURBQUEUE pQueue)
335	{
336	pQueue->pHead = NULL;
337	pQueue->ppTail = &pQueue->pHead;
338	}
339
340
341
342	/**
343	* Inserts an URB at the end of the queue.
344	*
345	* @param pQueue The URB queue.
346	* @param pUrb The URB to insert.
347	*/
348	DECLINLINE(void) usbHidQueueAddTail(PUSBHIDURBQUEUE pQueue, PVUSBURB pUrb)
349	{
350	pUrb->Dev.pNext = NULL;
351	*pQueue->ppTail = pUrb;
352	pQueue->ppTail = &pUrb->Dev.pNext;
353	}
354
355
356	/**
357	* Unlinks the head of the queue and returns it.
358	*
359	* @returns The head entry.
360	* @param pQueue The URB queue.
361	*/
362	DECLINLINE(PVUSBURB) usbHidQueueRemoveHead(PUSBHIDURBQUEUE pQueue)
363	{
364	PVUSBURB pUrb = pQueue->pHead;
365	if (pUrb)
366	{
367	PVUSBURB pNext = pUrb->Dev.pNext;
368	pQueue->pHead = pNext;
369	if (!pNext)
370	pQueue->ppTail = &pQueue->pHead;
371	else
372	pUrb->Dev.pNext = NULL;
373	}
374	return pUrb;
375	}
376
377
378	/**
379	* Removes an URB from anywhere in the queue.
380	*
381	* @returns true if found, false if not.
382	* @param pQueue The URB queue.
383	* @param pUrb The URB to remove.
384	*/
385	DECLINLINE(bool) usbHidQueueRemove(PUSBHIDURBQUEUE pQueue, PVUSBURB pUrb)
386	{
387	PVUSBURB pCur = pQueue->pHead;
388	if (pCur == pUrb)
389	pQueue->pHead = pUrb->Dev.pNext;
390	else
391	{
392	while (pCur)
393	{
394	if (pCur->Dev.pNext == pUrb)
395	{
396	pCur->Dev.pNext = pUrb->Dev.pNext;
397	break;
398	}
399	pCur = pCur->Dev.pNext;
400	}
401	if (!pCur)
402	return false;
403	}
404	if (!pUrb->Dev.pNext)
405	pQueue->ppTail = &pQueue->pHead;
406	return true;
407	}
408
409
410	/**
411	* Checks if the queue is empty or not.
412	*
413	* @returns true if it is, false if it isn't.
414	* @param pQueue The URB queue.
415	*/
416	DECLINLINE(bool) usbHidQueueIsEmpty(PCUSBHIDURBQUEUE pQueue)
417	{
418	return pQueue->pHead == NULL;
419	}
420
421
422	/**
423	* Links an URB into the done queue.
424	*
425	* @param pThis The HID instance.
426	* @param pUrb The URB.
427	*/
428	static void usbHidLinkDone(PUSBHID pThis, PVUSBURB pUrb)
429	{
430	usbHidQueueAddTail(&pThis->DoneQueue, pUrb);
431
432	if (pThis->fHaveDoneQueueWaiter)
433	{
434	int rc = RTSemEventSignal(pThis->hEvtDoneQueue);
435	AssertRC(rc);
436	}
437	}
438
439
440
441	/**
442	* Completes the URB with a stalled state, halting the pipe.
443	*/
444	static int usbHidCompleteStall(PUSBHID pThis, PUSBHIDEP pEp, PVUSBURB pUrb, const char *pszWhy)
445	{
446	Log(("usbHidCompleteStall/#%u: pUrb=%p:%s: %s\n", pThis->pUsbIns->iInstance, pUrb, pUrb->pszDesc, pszWhy));
447
448	pUrb->enmStatus = VUSBSTATUS_STALL;
449
450	/** @todo figure out if the stall is global or pipe-specific or both. */
451	if (pEp)
452	pEp->fHalted = true;
453	else
454	{
455	pThis->aEps[1].fHalted = true;
456	pThis->aEps[2].fHalted = true;
457	}
458
459	usbHidLinkDone(pThis, pUrb);
460	return VINF_SUCCESS;
461	}
462
463
464	/**
465	* Completes the URB with a OK state.
466	*/
467	static int usbHidCompleteOk(PUSBHID pThis, PVUSBURB pUrb, size_t cbData)
468	{
469	Log(("usbHidCompleteOk/#%u: pUrb=%p:%s cbData=%#zx\n", pThis->pUsbIns->iInstance, pUrb, pUrb->pszDesc, cbData));
470
471	pUrb->enmStatus = VUSBSTATUS_OK;
472	pUrb->cbData = cbData;
473
474	usbHidLinkDone(pThis, pUrb);
475	return VINF_SUCCESS;
476	}
477
478
479	/**
480	* Reset worker for usbHidUsbReset, usbHidUsbSetConfiguration and
481	* usbHidUrbHandleDefaultPipe.
482	*
483	* @returns VBox status code.
484	* @param pThis The HID instance.
485	* @param pUrb Set when usbHidUrbHandleDefaultPipe is the
486	* caller.
487	* @param fSetConfig Set when usbHidUsbSetConfiguration is the
488	* caller.
489	*/
490	static int usbHidResetWorker(PUSBHID pThis, PVUSBURB pUrb, bool fSetConfig)
491	{
492	/*
493	* Reset the device state.
494	*/
495	pThis->enmState = USBHIDREQSTATE_READY;
496	pThis->bIdle = 0;
497	memset(&pThis->Report, 0, sizeof(pThis->Report));
498
499	for (unsigned i = 0; i < RT_ELEMENTS(pThis->aEps); i++)
500	pThis->aEps[i].fHalted = false;
501
502	if (!pUrb && !fSetConfig) /* (only device reset) */
503	pThis->bConfigurationValue = 0; /* default */
504
505	/*
506	* Ditch all pending URBs.
507	*/
508	PVUSBURB pCurUrb;
509	while ((pCurUrb = usbHidQueueRemoveHead(&pThis->ToHostQueue)) != NULL)
510	{
511	pCurUrb->enmStatus = VUSBSTATUS_CRC;
512	usbHidLinkDone(pThis, pCurUrb);
513	}
514
515	if (pUrb)
516	return usbHidCompleteOk(pThis, pUrb, 0);
517	return VINF_SUCCESS;
518	}
519
520
521	/**
522	* Sends a state report to the host if there is a pending URB.
523	*/
524	static int usbHidSendReport(PUSBHID pThis)
525	{
526	PVUSBURB pUrb = usbHidQueueRemoveHead(&pThis->ToHostQueue);
527	if (pUrb)
528	{
529	PUSBHIDK_REPORT pReport = &pThis->Report;
530	size_t cbCopy;
531
532	cbCopy = sizeof(*pReport);
533	memcpy(&pUrb->abData[0], pReport, cbCopy);
534	// LogRel(("Sent report: %x : %x %x, size %d\n", pReport->ShiftState, pReport->aKeys[0], pReport->aKeys[1], cbCopy));
535	return usbHidCompleteOk(pThis, pUrb, cbCopy);
536	}
537	return VINF_EOF;
538	}
539
540	/**
541	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
542	*/
543	static DECLCALLBACK(void ) usbHidKeyboardQueryInterface(PPDMIBASE pInterface, const char pszIID)
544	{
545	PUSBHID pThis = RT_FROM_MEMBER(pInterface, USBHID, Lun0.IBase);
546	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThis->Lun0.IBase);
547	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIKEYBOARDPORT, &pThis->Lun0.IPort);
548	return NULL;
549	}
550
551	static int8_t clamp_i8(int32_t val)
552	{
553	if (val > 127)
554	val = 127;
555	else if (val < -127)
556	val = -127;
557	return val;
558	}
559
560	static uint8_t aKeycode2Hid[] =
561	{
562	0x00, 0x29, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23,
563	0x24, 0x25, 0x26, 0x27, 0x2d, 0x2e, 0x2a, 0x2b,
564	0x14, 0x1a, 0x08, 0x15, 0x17, 0x1c, 0x18, 0x0c,
565	0x12, 0x13, 0x2f, 0x30, 0x28, 0xe0, 0x04, 0x16,
566	0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33,
567	0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19,
568	0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55,
569	0xe2, 0x2c, 0x32, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e,
570	0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f,
571	0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59,
572	0x5a, 0x5b, 0x62, 0x63, 0x00, 0x00, 0x00, 0x44,
573	0x45, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e,
574	0xe8, 0xe9, 0x71, 0x72, 0x73, 0x00, 0x00, 0x00,
575	0x00, 0x00, 0x00, 0x85, 0x00, 0x00, 0x00, 0x00,
576	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
577	0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65,
578	};
579
580	/**
581	* Keyboard event handler.
582	*
583	* @returns VBox status code.
584	* @param pInterface Pointer to the keyboard port interface (KBDState::Keyboard.IPort).
585	* @param u8KeyCode The keycode.
586	*/
587	static DECLCALLBACK(int) usbHidKeyboardPutEvent(PPDMIKEYBOARDPORT pInterface, uint8_t u8KeyCode)
588	{
589	PUSBHID pThis = RT_FROM_MEMBER(pInterface, USBHID, Lun0.IPort);
590	PUSBHIDK_REPORT pReport = &pThis->Report;
591	uint8_t u8HidCode;
592	int fKeyDown;
593	unsigned i;
594
595	// int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
596	// AssertReleaseRC(rc);
597
598	/* Extract the key event. */
599	u8HidCode = aKeycode2Hid[u8KeyCode & 0x7f];
600	fKeyDown = !(u8KeyCode & 0x80);
601
602	if (fKeyDown)
603	{
604	for (i = 0; i < RT_ELEMENTS(pReport->aKeys); ++i)
605	{
606	if (pReport->aKeys[i] == u8HidCode)
607	break; /* Skip repeat events. */
608	if (pReport->aKeys[i] == 0)
609	{
610	pReport->aKeys[i] = u8HidCode; /* Report key down. */
611	break;
612	}
613	}
614	if (i == RT_ELEMENTS(pReport->aKeys))
615	{
616	/* We ran out of room. Report error. */
617	// @todo!!
618	}
619	}
620	else
621	{
622	for (i = 0; i < RT_ELEMENTS(pReport->aKeys); ++i)
623	{
624	if (pReport->aKeys[i] == u8HidCode)
625	{
626	pReport->aKeys[i] = 0;
627	break; /* Remove key down. */
628	}
629	}
630	if (i == RT_ELEMENTS(pReport->aKeys))
631	{
632	// AssertMsgFailed(("Key is up but was never down!?"));
633	}
634	}
635
636	/* Send a report if the host is already waiting for it. */
637	usbHidSendReport(pThis);
638
639	// PDMCritSectLeave(&pThis->CritSect);
640	return VINF_SUCCESS;
641	}
642
643	/**
644	* @copydoc PDMUSBREG::pfnUrbReap
645	*/
646	static DECLCALLBACK(PVUSBURB) usbHidUrbReap(PPDMUSBINS pUsbIns, RTMSINTERVAL cMillies)
647	{
648	PUSBHID pThis = PDMINS_2_DATA(pUsbIns, PUSBHID);
649	LogFlow(("usbHidUrbReap/#%u: cMillies=%u\n", pUsbIns->iInstance, cMillies));
650
651	RTCritSectEnter(&pThis->CritSect);
652
653	PVUSBURB pUrb = usbHidQueueRemoveHead(&pThis->DoneQueue);
654	if (!pUrb && cMillies)
655	{
656	/* Wait */
657	pThis->fHaveDoneQueueWaiter = true;
658	RTCritSectLeave(&pThis->CritSect);
659
660	RTSemEventWait(pThis->hEvtDoneQueue, cMillies);
661
662	RTCritSectEnter(&pThis->CritSect);
663	pThis->fHaveDoneQueueWaiter = false;
664
665	pUrb = usbHidQueueRemoveHead(&pThis->DoneQueue);
666	}
667
668	RTCritSectLeave(&pThis->CritSect);
669
670	if (pUrb)
671	Log(("usbHidUrbReap/#%u: pUrb=%p:%s\n", pUsbIns->iInstance, pUrb, pUrb->pszDesc));
672	return pUrb;
673	}
674
675
676	/**
677	* @copydoc PDMUSBREG::pfnUrbCancel
678	*/
679	static DECLCALLBACK(int) usbHidUrbCancel(PPDMUSBINS pUsbIns, PVUSBURB pUrb)
680	{
681	PUSBHID pThis = PDMINS_2_DATA(pUsbIns, PUSBHID);
682	LogFlow(("usbHidUrbCancel/#%u: pUrb=%p:%s\n", pUsbIns->iInstance, pUrb, pUrb->pszDesc));
683	RTCritSectEnter(&pThis->CritSect);
684
685	/*
686	* Remove the URB from the to-host queue and move it onto the done queue.
687	*/
688	if (usbHidQueueRemove(&pThis->ToHostQueue, pUrb))
689	usbHidLinkDone(pThis, pUrb);
690
691	RTCritSectLeave(&pThis->CritSect);
692	return VINF_SUCCESS;
693	}
694
695
696	/**
697	* Handles request sent to the inbound (device to host) interrupt pipe. This is
698	* rather different from bulk requests because an interrupt read URB may complete
699	* after arbitrarily long time.
700	*/
701	static int usbHidHandleIntrDevToHost(PUSBHID pThis, PUSBHIDEP pEp, PVUSBURB pUrb)
702	{
703	/*
704	* Stall the request if the pipe is halted.
705	*/
706	if (RT_UNLIKELY(pEp->fHalted))
707	return usbHidCompleteStall(pThis, NULL, pUrb, "Halted pipe");
708
709	/*
710	* Deal with the URB according to the state.
711	*/
712	switch (pThis->enmState)
713	{
714	/*
715	* We've data left to transfer to the host.
716	*/
717	case USBHIDREQSTATE_DATA_TO_HOST:
718	{
719	AssertFailed();
720	Log(("usbHidHandleIntrDevToHost: Entering STATUS\n"));
721	return usbHidCompleteOk(pThis, pUrb, 0);
722	}
723
724	/*
725	* Status transfer.
726	*/
727	case USBHIDREQSTATE_STATUS:
728	{
729	AssertFailed();
730	Log(("usbHidHandleIntrDevToHost: Entering READY\n"));
731	pThis->enmState = USBHIDREQSTATE_READY;
732	return usbHidCompleteOk(pThis, pUrb, 0);
733	}
734
735	case USBHIDREQSTATE_READY:
736	usbHidQueueAddTail(&pThis->ToHostQueue, pUrb);
737	/* If device was not set idle, sent the current report right away. */
738	if (pThis->bIdle != 0)
739	usbHidSendReport(pThis);
740	LogFlow(("usbHidHandleIntrDevToHost: Sent report via %p:%s\n", pUrb, pUrb->pszDesc));
741	return VINF_SUCCESS;
742
743	/*
744	* Bad states, stall.
745	*/
746	default:
747	Log(("usbHidHandleIntrDevToHost: enmState=%d cbData=%#x\n", pThis->enmState, pUrb->cbData));
748	return usbHidCompleteStall(pThis, NULL, pUrb, "Really bad state (D2H)!");
749	}
750	}
751
752
753	/**
754	* Handles request sent to the default control pipe.
755	*/
756	static int usbHidHandleDefaultPipe(PUSBHID pThis, PUSBHIDEP pEp, PVUSBURB pUrb)
757	{
758	PVUSBSETUP pSetup = (PVUSBSETUP)&pUrb->abData[0];
759	AssertReturn(pUrb->cbData >= sizeof(*pSetup), VERR_VUSB_FAILED_TO_QUEUE_URB);
760
761	if ((pSetup->bmRequestType & VUSB_REQ_MASK) == VUSB_REQ_STANDARD)
762	{
763	switch (pSetup->bRequest)
764	{
765	case VUSB_REQ_GET_DESCRIPTOR:
766	{
767	switch (pSetup->bmRequestType)
768	{
769	case VUSB_TO_DEVICE \| VUSB_REQ_STANDARD \| VUSB_DIR_TO_HOST:
770	{
771	switch (pSetup->wValue >> 8)
772	{
773	case VUSB_DT_STRING:
774	Log(("usbHid: GET_DESCRIPTOR DT_STRING wValue=%#x wIndex=%#x\n", pSetup->wValue, pSetup->wIndex));
775	break;
776	default:
777	Log(("usbHid: GET_DESCRIPTOR, huh? wValue=%#x wIndex=%#x\n", pSetup->wValue, pSetup->wIndex));
778	break;
779	}
780	break;
781	}
782
783	case VUSB_TO_INTERFACE \| VUSB_REQ_STANDARD \| VUSB_DIR_TO_HOST:
784	{
785	switch (pSetup->wValue >> 8)
786	{
787	case DT_IF_HID_REPORT:
788	uint32_t cbCopy;
789
790	/* Returned data is written after the setup message. */
791	cbCopy = pUrb->cbData - sizeof(*pSetup);
792	cbCopy = RT_MIN(cbCopy, sizeof(g_UsbHidReportDesc));
793	Log(("usbHid: GET_DESCRIPTOR DT_IF_HID_REPORT wValue=%#x wIndex=%#x cbCopy=%#x\n", pSetup->wValue, pSetup->wIndex, cbCopy));
794	memcpy(&pUrb->abData[sizeof(*pSetup)], &g_UsbHidReportDesc, cbCopy);
795	return usbHidCompleteOk(pThis, pUrb, cbCopy + sizeof(*pSetup));
796	default:
797	Log(("usbHid: GET_DESCRIPTOR, huh? wValue=%#x wIndex=%#x\n", pSetup->wValue, pSetup->wIndex));
798	break;
799	}
800	break;
801	}
802
803	default:
804	Log(("usbHid: Bad GET_DESCRIPTOR req: bmRequestType=%#x\n", pSetup->bmRequestType));
805	return usbHidCompleteStall(pThis, pEp, pUrb, "Bad GET_DESCRIPTOR");
806	}
807	break;
808	}
809
810	case VUSB_REQ_CLEAR_FEATURE:
811	break;
812	}
813
814	/** @todo implement this. */
815	Log(("usbHid: Implement standard request: bmRequestType=%#x bRequest=%#x wValue=%#x wIndex=%#x wLength=%#x\n",
816	pSetup->bmRequestType, pSetup->bRequest, pSetup->wValue, pSetup->wIndex, pSetup->wLength));
817
818	usbHidCompleteStall(pThis, pEp, pUrb, "TODO: standard request stuff");
819	}
820	else if ((pSetup->bmRequestType & VUSB_REQ_MASK) == VUSB_REQ_CLASS)
821	{
822	switch (pSetup->bRequest)
823	{
824	case HID_REQ_SET_IDLE:
825	{
826	switch (pSetup->bmRequestType)
827	{
828	case VUSB_TO_INTERFACE \| VUSB_REQ_CLASS \| VUSB_DIR_TO_DEVICE:
829	{
830	Log(("usbHid: SET_IDLE wValue=%#x wIndex=%#x\n", pSetup->wValue, pSetup->wIndex));
831	pThis->bIdle = pSetup->wValue >> 8;
832	/* Consider 24ms to mean zero for keyboards (see IOUSBHIDDriver) */
833	if (pThis->bIdle == 6) pThis->bIdle = 0;
834	return usbHidCompleteOk(pThis, pUrb, 0);
835	}
836	break;
837	}
838	break;
839	}
840	case HID_REQ_GET_IDLE:
841	{
842	switch (pSetup->bmRequestType)
843	{
844	case VUSB_TO_INTERFACE \| VUSB_REQ_CLASS \| VUSB_DIR_TO_HOST:
845	{
846	Log(("usbHid: GET_IDLE wValue=%#x wIndex=%#x, returning %#x\n", pSetup->wValue, pSetup->wIndex, pThis->bIdle));
847	pUrb->abData[sizeof(*pSetup)] = pThis->bIdle;
848	return usbHidCompleteOk(pThis, pUrb, 1);
849	}
850	break;
851	}
852	break;
853	}
854	}
855	Log(("usbHid: Unimplemented class request: bmRequestType=%#x bRequest=%#x wValue=%#x wIndex=%#x wLength=%#x\n",
856	pSetup->bmRequestType, pSetup->bRequest, pSetup->wValue, pSetup->wIndex, pSetup->wLength));
857
858	usbHidCompleteStall(pThis, pEp, pUrb, "TODO: class request stuff");
859	}
860	else
861	{
862	Log(("usbHid: Unknown control msg: bmRequestType=%#x bRequest=%#x wValue=%#x wIndex=%#x wLength=%#x\n",
863	pSetup->bmRequestType, pSetup->bRequest, pSetup->wValue, pSetup->wIndex, pSetup->wLength));
864	return usbHidCompleteStall(pThis, pEp, pUrb, "Unknown control msg");
865	}
866
867	return VINF_SUCCESS;
868	}
869
870
871	/**
872	* @copydoc PDMUSBREG::pfnQueue
873	*/
874	static DECLCALLBACK(int) usbHidQueue(PPDMUSBINS pUsbIns, PVUSBURB pUrb)
875	{
876	PUSBHID pThis = PDMINS_2_DATA(pUsbIns, PUSBHID);
877	LogFlow(("usbHidQueue/#%u: pUrb=%p:%s EndPt=%#x\n", pUsbIns->iInstance, pUrb, pUrb->pszDesc, pUrb->EndPt));
878	RTCritSectEnter(&pThis->CritSect);
879
880	/*
881	* Parse on a per end-point basis.
882	*/
883	int rc;
884	switch (pUrb->EndPt)
885	{
886	case 0:
887	rc = usbHidHandleDefaultPipe(pThis, &pThis->aEps[0], pUrb);
888	break;
889
890	case 0x81:
891	AssertFailed();
892	case 0x01:
893	rc = usbHidHandleIntrDevToHost(pThis, &pThis->aEps[1], pUrb);
894	break;
895
896	default:
897	AssertMsgFailed(("EndPt=%d\n", pUrb->EndPt));
898	rc = VERR_VUSB_FAILED_TO_QUEUE_URB;
899	break;
900	}
901
902	RTCritSectLeave(&pThis->CritSect);
903	return rc;
904	}
905
906
907	/**
908	* @copydoc PDMUSBREG::pfnUsbClearHaltedEndpoint
909	*/
910	static DECLCALLBACK(int) usbHidUsbClearHaltedEndpoint(PPDMUSBINS pUsbIns, unsigned uEndpoint)
911	{
912	PUSBHID pThis = PDMINS_2_DATA(pUsbIns, PUSBHID);
913	LogFlow(("usbHidUsbClearHaltedEndpoint/#%u: uEndpoint=%#x\n", pUsbIns->iInstance, uEndpoint));
914
915	if ((uEndpoint & ~0x80) < RT_ELEMENTS(pThis->aEps))
916	{
917	RTCritSectEnter(&pThis->CritSect);
918	pThis->aEps[(uEndpoint & ~0x80)].fHalted = false;
919	RTCritSectLeave(&pThis->CritSect);
920	}
921
922	return VINF_SUCCESS;
923	}
924
925
926	/**
927	* @copydoc PDMUSBREG::pfnUsbSetInterface
928	*/
929	static DECLCALLBACK(int) usbHidUsbSetInterface(PPDMUSBINS pUsbIns, uint8_t bInterfaceNumber, uint8_t bAlternateSetting)
930	{
931	LogFlow(("usbHidUsbSetInterface/#%u: bInterfaceNumber=%u bAlternateSetting=%u\n", pUsbIns->iInstance, bInterfaceNumber, bAlternateSetting));
932	Assert(bAlternateSetting == 0);
933	return VINF_SUCCESS;
934	}
935
936
937	/**
938	* @copydoc PDMUSBREG::pfnUsbSetConfiguration
939	*/
940	static DECLCALLBACK(int) usbHidUsbSetConfiguration(PPDMUSBINS pUsbIns, uint8_t bConfigurationValue,
941	const void pvOldCfgDesc, const void pvOldIfState, const void *pvNewCfgDesc)
942	{
943	PUSBHID pThis = PDMINS_2_DATA(pUsbIns, PUSBHID);
944	LogFlow(("usbHidUsbSetConfiguration/#%u: bConfigurationValue=%u\n", pUsbIns->iInstance, bConfigurationValue));
945	Assert(bConfigurationValue == 1);
946	RTCritSectEnter(&pThis->CritSect);
947
948	/*
949	* If the same config is applied more than once, it's a kind of reset.
950	*/
951	if (pThis->bConfigurationValue == bConfigurationValue)
952	usbHidResetWorker(pThis, NULL, true /fSetConfig/); /** @todo figure out the exact difference */
953	pThis->bConfigurationValue = bConfigurationValue;
954
955	RTCritSectLeave(&pThis->CritSect);
956	return VINF_SUCCESS;
957	}
958
959
960	/**
961	* @copydoc PDMUSBREG::pfnUsbGetDescriptorCache
962	*/
963	static DECLCALLBACK(PCPDMUSBDESCCACHE) usbHidUsbGetDescriptorCache(PPDMUSBINS pUsbIns)
964	{
965	PUSBHID pThis = PDMINS_2_DATA(pUsbIns, PUSBHID);
966	LogFlow(("usbHidUsbGetDescriptorCache/#%u:\n", pUsbIns->iInstance));
967	return &g_UsbHidDescCache;
968	}
969
970
971	/**
972	* @copydoc PDMUSBREG::pfnUsbReset
973	*/
974	static DECLCALLBACK(int) usbHidUsbReset(PPDMUSBINS pUsbIns, bool fResetOnLinux)
975	{
976	PUSBHID pThis = PDMINS_2_DATA(pUsbIns, PUSBHID);
977	LogFlow(("usbHidUsbReset/#%u:\n", pUsbIns->iInstance));
978	RTCritSectEnter(&pThis->CritSect);
979
980	int rc = usbHidResetWorker(pThis, NULL, false /fSetConfig/);
981
982	RTCritSectLeave(&pThis->CritSect);
983	return rc;
984	}
985
986
987	/**
988	* @copydoc PDMUSBREG::pfnDestruct
989	*/
990	static void usbHidDestruct(PPDMUSBINS pUsbIns)
991	{
992	PUSBHID pThis = PDMINS_2_DATA(pUsbIns, PUSBHID);
993	LogFlow(("usbHidDestruct/#%u:\n", pUsbIns->iInstance));
994
995	if (RTCritSectIsInitialized(&pThis->CritSect))
996	{
997	RTCritSectEnter(&pThis->CritSect);
998	RTCritSectLeave(&pThis->CritSect);
999	RTCritSectDelete(&pThis->CritSect);
1000	}
1001
1002	if (pThis->hEvtDoneQueue != NIL_RTSEMEVENT)
1003	{
1004	RTSemEventDestroy(pThis->hEvtDoneQueue);
1005	pThis->hEvtDoneQueue = NIL_RTSEMEVENT;
1006	}
1007	}
1008
1009
1010	/**
1011	* @copydoc PDMUSBREG::pfnConstruct
1012	*/
1013	static DECLCALLBACK(int) usbHidConstruct(PPDMUSBINS pUsbIns, int iInstance, PCFGMNODE pCfg, PCFGMNODE pCfgGlobal)
1014	{
1015	PUSBHID pThis = PDMINS_2_DATA(pUsbIns, PUSBHID);
1016	Log(("usbHidConstruct/#%u:\n", iInstance));
1017
1018	/*
1019	* Perform the basic structure initialization first so the destructor
1020	* will not misbehave.
1021	*/
1022	pThis->pUsbIns = pUsbIns;
1023	pThis->hEvtDoneQueue = NIL_RTSEMEVENT;
1024	usbHidQueueInit(&pThis->ToHostQueue);
1025	usbHidQueueInit(&pThis->DoneQueue);
1026
1027	int rc = RTCritSectInit(&pThis->CritSect);
1028	AssertRCReturn(rc, rc);
1029
1030	rc = RTSemEventCreate(&pThis->hEvtDoneQueue);
1031	AssertRCReturn(rc, rc);
1032
1033	/*
1034	* Validate and read the configuration.
1035	*/
1036	rc = CFGMR3ValidateConfig(pCfg, "/", "", "", "UsbHid", iInstance);
1037	if (RT_FAILURE(rc))
1038	return rc;
1039
1040	pThis->Lun0.IBase.pfnQueryInterface = usbHidKeyboardQueryInterface;
1041	pThis->Lun0.IPort.pfnPutEvent = usbHidKeyboardPutEvent;
1042
1043	/*
1044	* Attach the keyboard driver.
1045	*/
1046	rc = pUsbIns->pHlpR3->pfnDriverAttach(pUsbIns, 0 /iLun/, &pThis->Lun0.IBase, &pThis->Lun0.pDrvBase, "Keyboard Port");
1047	if (RT_FAILURE(rc))
1048	return PDMUsbHlpVMSetError(pUsbIns, rc, RT_SRC_POS, N_("HID failed to attach keyboard driver"));
1049
1050	return VINF_SUCCESS;
1051	}
1052
1053
1054	/**
1055	* The USB Human Interface Device (HID) Keyboard registration record.
1056	*/
1057	const PDMUSBREG g_UsbHidKbd =
1058	{
1059	/* u32Version */
1060	PDM_USBREG_VERSION,
1061	/* szName */
1062	"HidKeyboard",
1063	/* pszDescription */
1064	"USB HID Keyboard.",
1065	/* fFlags */
1066	0,
1067	/* cMaxInstances */
1068	~0,
1069	/* cbInstance */
1070	sizeof(USBHID),
1071	/* pfnConstruct */
1072	usbHidConstruct,
1073	/* pfnDestruct */
1074	usbHidDestruct,
1075	/* pfnVMInitComplete */
1076	NULL,
1077	/* pfnVMPowerOn */
1078	NULL,
1079	/* pfnVMReset */
1080	NULL,
1081	/* pfnVMSuspend */
1082	NULL,
1083	/* pfnVMResume */
1084	NULL,
1085	/* pfnVMPowerOff */
1086	NULL,
1087	/* pfnHotPlugged */
1088	NULL,
1089	/* pfnHotUnplugged */
1090	NULL,
1091	/* pfnDriverAttach */
1092	NULL,
1093	/* pfnDriverDetach */
1094	NULL,
1095	/* pfnQueryInterface */
1096	NULL,
1097	/* pfnUsbReset */
1098	usbHidUsbReset,
1099	/* pfnUsbGetCachedDescriptors */
1100	usbHidUsbGetDescriptorCache,
1101	/* pfnUsbSetConfiguration */
1102	usbHidUsbSetConfiguration,
1103	/* pfnUsbSetInterface */
1104	usbHidUsbSetInterface,
1105	/* pfnUsbClearHaltedEndpoint */
1106	usbHidUsbClearHaltedEndpoint,
1107	/* pfnUrbNew */
1108	NULL/usbHidUrbNew/,
1109	/* pfnQueue */
1110	usbHidQueue,
1111	/* pfnUrbCancel */
1112	usbHidUrbCancel,
1113	/* pfnUrbReap */
1114	usbHidUrbReap,
1115	/* u32TheEnd */
1116	PDM_USBREG_VERSION
1117	};

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source: vbox/trunk/src/VBox/Devices/Input/UsbKbd.cpp@ 26669

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