DrvHostParallel.cpp@ 91482

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1	/* $Id: DrvHostParallel.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
2	/** @file
3	* VirtualBox Host Parallel Port Driver.
4	*
5	* Initial Linux-only code contributed by: Alexander Eichner
6	*/
7
8	/*
9	* Copyright (C) 2006-2020 Oracle Corporation
10	*
11	* This file is part of VirtualBox Open Source Edition (OSE), as
12	* available from http://www.virtualbox.org. This file is free software;
13	* you can redistribute it and/or modify it under the terms of the GNU
14	* General Public License (GPL) as published by the Free Software
15	* Foundation, in version 2 as it comes in the "COPYING" file of the
16	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
17	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
18	*/
19
20
21	/*********************************************************************************************************************************
22	* Header Files *
23	*********************************************************************************************************************************/
24	#define LOG_GROUP LOG_GROUP_DRV_HOST_PARALLEL
25	#include <VBox/vmm/pdmdrv.h>
26	#include <VBox/vmm/pdmthread.h>
27	#include <iprt/asm.h>
28	#include <iprt/assert.h>
29	#include <iprt/file.h>
30	#include <iprt/pipe.h>
31	#include <iprt/semaphore.h>
32	#include <iprt/stream.h>
33	#include <iprt/uuid.h>
34	#include <iprt/cdefs.h>
35	#include <iprt/ctype.h>
36
37	#ifdef RT_OS_LINUX
38	# include <sys/ioctl.h>
39	# include <sys/types.h>
40	# include <sys/stat.h>
41	# include <sys/poll.h>
42	# include <fcntl.h>
43	# include <unistd.h>
44	# include <linux/ppdev.h>
45	# include <linux/parport.h>
46	# include <errno.h>
47	#endif
48
49	/** @def VBOX_WITH_WIN_PARPORT_SUP
50	* Indicates whether to use the generic direct hardware access or host specific
51	* code to access the parallel port.
52	*/
53	#if defined(DOXYGEN_RUNNING)
54	# define VBOX_WITH_WIN_PARPORT_SUP
55	#endif
56	#if defined(RT_OS_LINUX)
57	# undef VBOX_WITH_WIN_PARPORT_SUP
58	#elif defined(RT_OS_WINDOWS)
59	#else
60	# error "Not ported"
61	#endif
62
63	#if defined(VBOX_WITH_WIN_PARPORT_SUP) && defined(IN_RING0)
64	# include <iprt/asm-amd64-x86.h>
65	#endif
66
67	#if defined(VBOX_WITH_WIN_PARPORT_SUP) && defined(IN_RING3)
68	# include <iprt/win/windows.h>
69	# include <iprt/win/setupapi.h>
70	# include <cfgmgr32.h>
71	# include <iprt/mem.h>
72	# include <iprt/ctype.h>
73	# include <iprt/path.h>
74	# include <iprt/string.h>
75	#endif
76
77	#include "VBoxDD.h"
78
79
80	/*********************************************************************************************************************************
81	* Structures and Typedefs *
82	*********************************************************************************************************************************/
83	/**
84	* Host parallel port driver instance data.
85	* @implements PDMIHOSTPARALLELCONNECTOR
86	*/
87	typedef struct DRVHOSTPARALLEL
88	{
89	/** Pointer to the driver instance structure. */
90	PPDMDRVINS pDrvIns;
91	/** Pointer to the driver instance. */
92	PPDMDRVINSR3 pDrvInsR3;
93	PPDMDRVINSR0 pDrvInsR0;
94	/** Pointer to the char port interface of the driver/device above us. */
95	PPDMIHOSTPARALLELPORT pDrvHostParallelPort;
96	/** Our host device interface. */
97	PDMIHOSTPARALLELCONNECTOR IHostParallelConnector;
98	/** Our host device interface. */
99	PDMIHOSTPARALLELCONNECTOR IHostParallelConnectorR3;
100	/** Device Path */
101	char *pszDevicePath;
102	/** Device Handle */
103	RTFILE hFileDevice;
104	#ifndef VBOX_WITH_WIN_PARPORT_SUP
105	/** Thread waiting for interrupts. */
106	PPDMTHREAD pMonitorThread;
107	/** Wakeup pipe read end. */
108	RTPIPE hWakeupPipeR;
109	/** Wakeup pipe write end. */
110	RTPIPE hWakeupPipeW;
111	/** Current mode the parallel port is in. */
112	PDMPARALLELPORTMODE enmModeCur;
113	#endif
114
115	#ifdef VBOX_WITH_WIN_PARPORT_SUP
116	/** Data register. */
117	RTIOPORT PortDirectData;
118	/** Status register. */
119	RTIOPORT PortDirectStatus;
120	/** Control register. */
121	RTIOPORT PortDirectControl;
122	/** Control read result buffer. */
123	uint8_t bReadInControl;
124	/** Status read result buffer. */
125	uint8_t bReadInStatus;
126	/** Data buffer for reads and writes. */
127	uint8_t abDataBuf[32];
128	#endif /* VBOX_WITH_WIN_PARPORT_SUP */
129	} DRVHOSTPARALLEL, *PDRVHOSTPARALLEL;
130
131
132	/**
133	* Ring-0 operations.
134	*/
135	typedef enum DRVHOSTPARALLELR0OP
136	{
137	/** Invalid zero value. */
138	DRVHOSTPARALLELR0OP_INVALID = 0,
139	/** Perform R0 initialization. */
140	DRVHOSTPARALLELR0OP_INITR0STUFF,
141	/** Read data into the data buffer (abDataBuf). */
142	DRVHOSTPARALLELR0OP_READ,
143	/** Read status register. */
144	DRVHOSTPARALLELR0OP_READSTATUS,
145	/** Read control register. */
146	DRVHOSTPARALLELR0OP_READCONTROL,
147	/** Write data from the data buffer (abDataBuf). */
148	DRVHOSTPARALLELR0OP_WRITE,
149	/** Write control register. */
150	DRVHOSTPARALLELR0OP_WRITECONTROL,
151	/** Set port direction. */
152	DRVHOSTPARALLELR0OP_SETPORTDIRECTION
153	} DRVHOSTPARALLELR0OP;
154
155	/** Converts a pointer to DRVHOSTPARALLEL::IHostDeviceConnector to a PDRHOSTPARALLEL. */
156	#define PDMIHOSTPARALLELCONNECTOR_2_DRVHOSTPARALLEL(pInterface) ( (PDRVHOSTPARALLEL)((uintptr_t)pInterface - RT_UOFFSETOF(DRVHOSTPARALLEL, CTX_SUFF(IHostParallelConnector))) )
157
158
159	/*********************************************************************************************************************************
160	* Defined Constants And Macros *
161	*********************************************************************************************************************************/
162	#define CTRL_REG_OFFSET 2
163	#define STATUS_REG_OFFSET 1
164	#define LPT_CONTROL_ENABLE_BIDIRECT 0x20
165
166
167
168	#ifdef VBOX_WITH_WIN_PARPORT_SUP
169	# ifdef IN_RING0
170
171	/**
172	* R0 mode function to write byte value to data port.
173	*
174	* @returns VBox status code.
175	* @param pThis Pointer to the instance data.
176	* @param u64Arg The number of bytes to write (from abDataBuf).
177	*/
178	static int drvR0HostParallelReqWrite(PDRVHOSTPARALLEL pThis, uint64_t u64Arg)
179	{
180	LogFlowFunc(("write %#RX64 bytes to data (%#x)\n", u64Arg, pThis->PortDirectData));
181
182	AssertReturn(u64Arg > 0 && u64Arg <= sizeof(pThis->abDataBuf), VERR_OUT_OF_RANGE);
183	uint8_t const *pbSrc = pThis->abDataBuf;
184	while (u64Arg-- > 0)
185	{
186	ASMOutU8(pThis->PortDirectData, *pbSrc);
187	pbSrc++;
188	}
189
190	return VINF_SUCCESS;
191	}
192
193	/**
194	* R0 mode function to write byte value to parallel port control register.
195	*
196	* @returns VBox status code.
197	* @param pThis Pointer to the instance data.
198	* @param u64Arg Data to be written to control register.
199	*/
200	static int drvR0HostParallelReqWriteControl(PDRVHOSTPARALLEL pThis, uint64_t u64Arg)
201	{
202	LogFlowFunc(("write to ctrl port=%#x val=%#x\n", pThis->PortDirectControl, u64Arg));
203	ASMOutU8(pThis->PortDirectControl, (uint8_t)(u64Arg));
204	return VINF_SUCCESS;
205	}
206
207	/**
208	* R0 mode function to ready byte value from the parallel port data register.
209	*
210	* @returns VBox status code.
211	* @param pThis Pointer to the instance data.
212	* @param u64Arg The number of bytes to read into abDataBuf.
213	*/
214	static int drvR0HostParallelReqRead(PDRVHOSTPARALLEL pThis, uint64_t u64Arg)
215	{
216	LogFlowFunc(("read %#RX64 bytes to data (%#x)\n", u64Arg, pThis->PortDirectData));
217
218	AssertReturn(u64Arg > 0 && u64Arg <= sizeof(pThis->abDataBuf), VERR_OUT_OF_RANGE);
219	uint8_t *pbDst = pThis->abDataBuf;
220	while (u64Arg-- > 0)
221	*pbDst++ = ASMInU8(pThis->PortDirectData);
222
223	return VINF_SUCCESS;
224	}
225
226	/**
227	* R0 mode function to ready byte value from the parallel port control register.
228	*
229	* @returns VBox status code.
230	* @param pThis Pointer to the instance data.
231	*/
232	static int drvR0HostParallelReqReadControl(PDRVHOSTPARALLEL pThis)
233	{
234	uint8_t u8Data = ASMInU8(pThis->PortDirectControl);
235	LogFlowFunc(("read from ctrl port=%#x val=%#x\n", pThis->PortDirectControl, u8Data));
236	pThis->bReadInControl = u8Data;
237	return VINF_SUCCESS;
238	}
239
240	/**
241	* R0 mode function to ready byte value from the parallel port status register.
242	*
243	* @returns VBox status code.
244	* @param pThis Pointer to the instance data.
245	*/
246	static int drvR0HostParallelReqReadStatus(PDRVHOSTPARALLEL pThis)
247	{
248	uint8_t u8Data = ASMInU8(pThis->PortDirectStatus);
249	LogFlowFunc(("read from status port=%#x val=%#x\n", pThis->PortDirectStatus, u8Data));
250	pThis->bReadInStatus = u8Data;
251	return VINF_SUCCESS;
252	}
253
254	/**
255	* R0 mode function to set the direction of parallel port -
256	* operate in bidirectional mode or single direction.
257	*
258	* @returns VBox status code.
259	* @param pThis Pointer to the instance data.
260	* @param u64Arg Mode.
261	*/
262	static int drvR0HostParallelReqSetPortDir(PDRVHOSTPARALLEL pThis, uint64_t u64Arg)
263	{
264	uint8_t bCtl = ASMInU8(pThis->PortDirectControl);
265	if (u64Arg)
266	bCtl \|= LPT_CONTROL_ENABLE_BIDIRECT; /* enable input direction */
267	else
268	bCtl &= ~LPT_CONTROL_ENABLE_BIDIRECT; /* disable input direction */
269	ASMOutU8(pThis->PortDirectControl, bCtl);
270
271	return VINF_SUCCESS;
272	}
273
274	/**
275	* @callback_method_impl{FNPDMDRVREQHANDLERR0}
276	*/
277	PDMBOTHCBDECL(int) drvR0HostParallelReqHandler(PPDMDRVINS pDrvIns, uint32_t uOperation, uint64_t u64Arg)
278	{
279	PDRVHOSTPARALLEL pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTPARALLEL);
280	int rc;
281	LogFlowFuncEnter();
282
283	if (pThis->PortDirectData != 0)
284	{
285	switch ((DRVHOSTPARALLELR0OP)uOperation)
286	{
287	case DRVHOSTPARALLELR0OP_READ:
288	rc = drvR0HostParallelReqRead(pThis, u64Arg);
289	break;
290	case DRVHOSTPARALLELR0OP_READSTATUS:
291	rc = drvR0HostParallelReqReadStatus(pThis);
292	break;
293	case DRVHOSTPARALLELR0OP_READCONTROL:
294	rc = drvR0HostParallelReqReadControl(pThis);
295	break;
296	case DRVHOSTPARALLELR0OP_WRITE:
297	rc = drvR0HostParallelReqWrite(pThis, u64Arg);
298	break;
299	case DRVHOSTPARALLELR0OP_WRITECONTROL:
300	rc = drvR0HostParallelReqWriteControl(pThis, u64Arg);
301	break;
302	case DRVHOSTPARALLELR0OP_SETPORTDIRECTION:
303	rc = drvR0HostParallelReqSetPortDir(pThis, u64Arg);
304	break;
305	default:
306	rc = VERR_INVALID_FUNCTION;
307	break;
308	}
309	}
310	else
311	rc = VERR_WRONG_ORDER;
312
313	LogFlowFuncLeaveRC(rc);
314	return rc;
315	}
316
317	# endif /* IN_RING0 */
318	#endif /* VBOX_WITH_WIN_PARPORT_SUP */
319
320	#ifdef IN_RING3
321	# ifdef VBOX_WITH_WIN_PARPORT_SUP
322
323	/**
324	* Find IO port range for the parallel port and return the lower address.
325	*
326	* @returns Parallel base I/O port.
327	* @param DevInst Device instance (dword/handle) for the parallel port.
328	*/
329	static RTIOPORT drvHostParallelGetWinHostIoPortsSub(const DEVINST DevInst)
330	{
331	RTIOPORT PortBase = 0;
332
333	/* Get handle of the first logical configuration. */
334	LOG_CONF hFirstLogConf;
335	CONFIGRET rcCm = CM_Get_First_Log_Conf(&hFirstLogConf, DevInst, ALLOC_LOG_CONF);
336	if (rcCm != CR_SUCCESS)
337	rcCm = CM_Get_First_Log_Conf(&hFirstLogConf, DevInst, BOOT_LOG_CONF);
338	if (rcCm == CR_SUCCESS)
339	{
340	/*
341	* This loop is based on the "fact" that only one I/O resource is assigned
342	* to the LPT port. Should there ever be multiple resources, we'll pick
343	* the last one for some silly reason.
344	*/
345
346	/* Get the first resource descriptor handle. */
347	LOG_CONF hCurLogConf = 0;
348	rcCm = CM_Get_Next_Res_Des(&hCurLogConf, hFirstLogConf, ResType_IO, 0, 0);
349	if (rcCm == CR_SUCCESS)
350	{
351	for (;;)
352	{
353	ULONG cbData;
354	rcCm = CM_Get_Res_Des_Data_Size(&cbData, hCurLogConf, 0);
355	if (rcCm != CR_SUCCESS)
356	cbData = 0;
357	cbData = RT_MAX(cbData, sizeof(IO_DES));
358	IO_DES pIoDesc = (IO_DES )RTMemAllocZ(cbData);
359	if (pIoDesc)
360	{
361	rcCm = CM_Get_Res_Des_Data(hCurLogConf, pIoDesc, cbData, 0L);
362	if (rcCm == CR_SUCCESS)
363	{
364	LogRel(("drvHostParallelGetWinHostIoPortsSub: Count=%#u Type=%#x Base=%#RX64 End=%#RX64 Flags=%#x\n",
365	pIoDesc->IOD_Count, pIoDesc->IOD_Type, (uint64_t)pIoDesc->IOD_Alloc_Base,
366	(uint64_t)pIoDesc->IOD_Alloc_End, pIoDesc->IOD_DesFlags));
367	PortBase = (RTIOPORT)pIoDesc->IOD_Alloc_Base;
368	}
369	else
370	LogRel(("drvHostParallelGetWinHostIoPortsSub: CM_Get_Res_Des_Data(,,%u,0) failed: %u\n", cbData, rcCm));
371	RTMemFree(pIoDesc);
372	}
373	else
374	LogRel(("drvHostParallelGetWinHostIoPortsSub: failed to allocate %#x bytes\n", cbData));
375
376	/* Next */
377	RES_DES hFreeResDesc = hCurLogConf;
378	rcCm = CM_Get_Next_Res_Des(&hCurLogConf, hCurLogConf, ResType_IO, 0, 0);
379	CM_Free_Res_Des_Handle(hFreeResDesc);
380	if (rcCm != CR_SUCCESS)
381	{
382	if (rcCm != CR_NO_MORE_RES_DES)
383	LogRel(("drvHostParallelGetWinHostIoPortsSub: CM_Get_Next_Res_Des failed: %u\n", rcCm));
384	break;
385	}
386	}
387	}
388	else
389	LogRel(("drvHostParallelGetWinHostIoPortsSub: Initial CM_Get_Next_Res_Des failed: %u\n", rcCm));
390	CM_Free_Log_Conf_Handle(hFirstLogConf);
391	}
392	LogFlowFunc(("return PortBase=%#x", PortBase));
393	return PortBase;
394	}
395
396	/**
397	* Get Parallel port address and update the shared data structure.
398	*
399	* @returns VBox status code.
400	* @param pThis The host parallel port instance data.
401	*/
402	static int drvHostParallelGetWinHostIoPorts(PDRVHOSTPARALLEL pThis)
403	{
404	/*
405	* Assume the host device path is on the form "\\.\PIPE\LPT1", then get the "LPT1" part.
406	*/
407	const char * const pszCfgPortName = RTPathFilename(pThis->pszDevicePath);
408	AssertReturn(pszCfgPortName, VERR_INTERNAL_ERROR_3);
409	size_t const cchCfgPortName = strlen(pszCfgPortName);
410	if ( cchCfgPortName != 4
411	\|\| RTStrNICmp(pszCfgPortName, "LPT", 3) != 0
412	\|\| !RT_C_IS_DIGIT(pszCfgPortName[3]) )
413	{
414	LogRel(("drvHostParallelGetWinHostIoPorts: The configured device name '%s' is not on the expected 'LPTx' form!\n",
415	pszCfgPortName));
416	return VERR_INVALID_NAME;
417	}
418
419	/*
420	* Get a list of devices then enumerate it looking for the LPT port we're using.
421	*/
422	HDEVINFO hDevInfo = SetupDiGetClassDevs(NULL, 0, 0, DIGCF_PRESENT \| DIGCF_ALLCLASSES);
423	if (hDevInfo == INVALID_HANDLE_VALUE)
424	{
425	DWORD dwErr = GetLastError();
426	LogRel(("drvHostParallelGetWinHostIoPorts: SetupDiGetClassDevs failed: %u\n", dwErr));
427	return RTErrConvertFromWin32(dwErr);
428	}
429
430	int rc = VINF_SUCCESS;
431	char *pszBuf = NULL;
432	DWORD cbBuf = 0;
433	for (int32_t idxDevInfo = 0;; idxDevInfo++)
434	{
435	/*
436	* Query the next device info.
437	*/
438	SP_DEVINFO_DATA DeviceInfoData;
439	DeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
440	if (!SetupDiEnumDeviceInfo(hDevInfo, idxDevInfo, &DeviceInfoData))
441	{
442	DWORD dwErr = GetLastError();
443	if (dwErr != ERROR_NO_MORE_ITEMS && dwErr != NO_ERROR)
444	{
445	LogRel(("drvHostParallelGetWinHostIoPorts: SetupDiEnumDeviceInfo failed: %u\n", dwErr));
446	rc = RTErrConvertFromWin32(dwErr);
447	}
448	break;
449	}
450
451	/* Get the friendly name of the device. */
452	DWORD dwDataType;
453	DWORD cbBufActual;
454	BOOL fOk;
455	while (!(fOk = SetupDiGetDeviceRegistryProperty(hDevInfo, &DeviceInfoData, SPDRP_FRIENDLYNAME,
456	&dwDataType, (PBYTE)pszBuf, cbBuf, &cbBufActual)))
457	{
458	DWORD dwErr = GetLastError();
459	if (dwErr == ERROR_INSUFFICIENT_BUFFER)
460	{
461	LogFlow(("ERROR_INSUFF_BUFF = %d. dwBufSz = %d\n", dwErr, cbBuf));
462	cbBuf = RT_MAX(RT_ALIGN_Z(cbBufActual + 16, 64), 256);
463	void *pvNew = RTMemRealloc(pszBuf, cbBuf);
464	if (pvNew)
465	pszBuf = (char *)pvNew;
466	else
467	{
468	LogFlow(("GetDevProp Error = %d & cbBufActual = %d\n", dwErr, cbBufActual));
469	break;
470	}
471	}
472	else
473	{
474	/* No need to bother about this error (in most cases its errno=13,
475	* INVALID_DATA . Just break from here and proceed to next device
476	* enumerated item
477	*/
478	LogFlow(("GetDevProp Error = %d & cbBufActual = %d\n", dwErr, cbBufActual));
479	break;
480	}
481	}
482	if ( fOk
483	&& pszBuf)
484	{
485	pszBuf[cbBuf - 1] = '\0';
486
487	/*
488	* Does this look like the port name we're looking for.
489	*
490	* We're expecting either "Parallel Port (LPT1)" or just "LPT1", though we'll make do
491	* with anything that includes the name we're looking for as a separate word.
492	*/
493	char *pszMatch;
494	do
495	pszMatch = RTStrIStr(pszBuf, pszCfgPortName);
496	while ( pszMatch != NULL
497	&& !( ( pszMatch == pszBuf
498	\|\| pszMatch[-1] == '('
499	\|\| RT_C_IS_BLANK(pszMatch[-1]))
500	&& ( pszMatch[cchCfgPortName] == '\0'
501	\|\| pszMatch[cchCfgPortName] == ')'
502	\|\| RT_C_IS_BLANK(pszMatch[cchCfgPortName])) ) );
503	if (pszMatch != NULL)
504	{
505	RTIOPORT Port = drvHostParallelGetWinHostIoPortsSub(DeviceInfoData.DevInst);
506	if (Port != 0)
507	{
508	pThis->PortDirectData = Port;
509	pThis->PortDirectControl = Port + CTRL_REG_OFFSET;
510	pThis->PortDirectStatus = Port + STATUS_REG_OFFSET;
511	break;
512	}
513	LogRel(("drvHostParallelGetWinHostIoPorts: Addr not found for '%s'\n", pszBuf));
514	}
515	}
516	}
517
518	/* Cleanup. */
519	RTMemFree(pszBuf);
520	SetupDiDestroyDeviceInfoList(hDevInfo);
521	return rc;
522
523	}
524	# endif /* VBOX_WITH_WIN_PARPORT_SUP */
525
526	/**
527	* Changes the current mode of the host parallel port.
528	*
529	* @returns VBox status code.
530	* @param pThis The host parallel port instance data.
531	* @param enmMode The mode to change the port to.
532	*/
533	static int drvHostParallelSetMode(PDRVHOSTPARALLEL pThis, PDMPARALLELPORTMODE enmMode)
534	{
535	LogFlowFunc(("mode=%d\n", enmMode));
536	# ifndef VBOX_WITH_WIN_PARPORT_SUP
537	int rc = VINF_SUCCESS;
538	int iMode = 0;
539	int rcLnx;
540	if (pThis->enmModeCur != enmMode)
541	{
542	switch (enmMode)
543	{
544	case PDM_PARALLEL_PORT_MODE_SPP:
545	iMode = IEEE1284_MODE_COMPAT;
546	break;
547	case PDM_PARALLEL_PORT_MODE_EPP_DATA:
548	iMode = IEEE1284_MODE_EPP \| IEEE1284_DATA;
549	break;
550	case PDM_PARALLEL_PORT_MODE_EPP_ADDR:
551	iMode = IEEE1284_MODE_EPP \| IEEE1284_ADDR;
552	break;
553	case PDM_PARALLEL_PORT_MODE_ECP:
554	case PDM_PARALLEL_PORT_MODE_INVALID:
555	default:
556	return VERR_NOT_SUPPORTED;
557	}
558
559	rcLnx = ioctl(RTFileToNative(pThis->hFileDevice), PPSETMODE, &iMode);
560	if (RT_UNLIKELY(rcLnx < 0))
561	rc = RTErrConvertFromErrno(errno);
562	else
563	pThis->enmModeCur = enmMode;
564	}
565
566	return rc;
567	# else /* VBOX_WITH_WIN_PARPORT_SUP */
568	RT_NOREF(pThis, enmMode);
569	return VINF_SUCCESS;
570	# endif /* VBOX_WITH_WIN_PARPORT_SUP */
571	}
572
573	/* -=-=-=-=- IBase -=-=-=-=- */
574
575	/**
576	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
577	*/
578	static DECLCALLBACK(void ) drvHostParallelQueryInterface(PPDMIBASE pInterface, const char pszIID)
579	{
580	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
581	PDRVHOSTPARALLEL pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTPARALLEL);
582
583	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
584	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIHOSTPARALLELCONNECTOR, &pThis->CTX_SUFF(IHostParallelConnector));
585	return NULL;
586	}
587
588
589	/* -=-=-=-=- IHostDeviceConnector -=-=-=-=- */
590
591	/**
592	* @interface_method_impl{PDMIHOSTPARALLELCONNECTOR,pfnWrite}
593	*/
594	static DECLCALLBACK(int)
595	drvHostParallelWrite(PPDMIHOSTPARALLELCONNECTOR pInterface, const void *pvBuf, size_t cbWrite, PDMPARALLELPORTMODE enmMode)
596	{
597	PDRVHOSTPARALLEL pThis = RT_FROM_MEMBER(pInterface, DRVHOSTPARALLEL, CTX_SUFF(IHostParallelConnector));
598	int rc = VINF_SUCCESS;
599
600	LogFlowFunc(("pvBuf=%#p cbWrite=%d\n", pvBuf, cbWrite));
601
602	rc = drvHostParallelSetMode(pThis, enmMode);
603	if (RT_FAILURE(rc))
604	return rc;
605	# ifndef VBOX_WITH_WIN_PARPORT_SUP
606	int rcLnx = 0;
607	if (enmMode == PDM_PARALLEL_PORT_MODE_SPP)
608	{
609	/* Set the data lines directly. */
610	rcLnx = ioctl(RTFileToNative(pThis->hFileDevice), PPWDATA, pvBuf);
611	}
612	else
613	{
614	/* Use write interface. */
615	rcLnx = write(RTFileToNative(pThis->hFileDevice), pvBuf, cbWrite);
616	}
617	if (RT_UNLIKELY(rcLnx < 0))
618	rc = RTErrConvertFromErrno(errno);
619
620	# else /* VBOX_WITH_WIN_PARPORT_SUP */
621	if (pThis->PortDirectData != 0)
622	{
623	while (cbWrite > 0)
624	{
625	size_t cbToWrite = RT_MIN(cbWrite, sizeof(pThis->abDataBuf));
626	LogFlowFunc(("Calling R0 to write %#zu bytes of data\n", cbToWrite));
627	memcpy(pThis->abDataBuf, pvBuf, cbToWrite);
628	rc = PDMDrvHlpCallR0(pThis->CTX_SUFF(pDrvIns), DRVHOSTPARALLELR0OP_WRITE, cbToWrite);
629	AssertRC(rc);
630	pvBuf = (uint8_t const *)pvBuf + cbToWrite;
631	cbWrite -= cbToWrite;
632	}
633	}
634	# endif /* VBOX_WITH_WIN_PARPORT_SUP */
635	return rc;
636	}
637
638	/**
639	* @interface_method_impl{PDMIHOSTPARALLELCONNECTOR,pfnRead}
640	*/
641	static DECLCALLBACK(int)
642	drvHostParallelRead(PPDMIHOSTPARALLELCONNECTOR pInterface, void *pvBuf, size_t cbRead, PDMPARALLELPORTMODE enmMode)
643	{
644	PDRVHOSTPARALLEL pThis = RT_FROM_MEMBER(pInterface, DRVHOSTPARALLEL, CTX_SUFF(IHostParallelConnector));
645	int rc = VINF_SUCCESS;
646
647	# ifndef VBOX_WITH_WIN_PARPORT_SUP
648	int rcLnx = 0;
649	LogFlowFunc(("pvBuf=%#p cbRead=%d\n", pvBuf, cbRead));
650
651	rc = drvHostParallelSetMode(pThis, enmMode);
652	if (RT_FAILURE(rc))
653	return rc;
654
655	if (enmMode == PDM_PARALLEL_PORT_MODE_SPP)
656	{
657	/* Set the data lines directly. */
658	rcLnx = ioctl(RTFileToNative(pThis->hFileDevice), PPWDATA, pvBuf);
659	}
660	else
661	{
662	/* Use write interface. */
663	rcLnx = read(RTFileToNative(pThis->hFileDevice), pvBuf, cbRead);
664	}
665	if (RT_UNLIKELY(rcLnx < 0))
666	rc = RTErrConvertFromErrno(errno);
667
668	# else /* VBOX_WITH_WIN_PARPORT_SUP */
669	RT_NOREF(enmMode);
670	if (pThis->PortDirectData != 0)
671	{
672	while (cbRead > 0)
673	{
674	size_t cbToRead = RT_MIN(cbRead, sizeof(pThis->abDataBuf));
675	LogFlowFunc(("Calling R0 to read %#zu bytes of data\n", cbToRead));
676	memset(pThis->abDataBuf, 0, cbToRead);
677	rc = PDMDrvHlpCallR0(pThis->CTX_SUFF(pDrvIns), DRVHOSTPARALLELR0OP_READ, cbToRead);
678	AssertRC(rc);
679	memcpy(pvBuf, pThis->abDataBuf, cbToRead);
680	pvBuf = (uint8_t *)pvBuf + cbToRead;
681	cbRead -= cbToRead;
682	}
683	}
684	# endif /* VBOX_WITH_WIN_PARPORT_SUP */
685	return rc;
686	}
687
688	/**
689	* @interface_method_impl{PDMIHOSTPARALLELCONNECTOR,pfnSetPortDirection}
690	*/
691	static DECLCALLBACK(int) drvHostParallelSetPortDirection(PPDMIHOSTPARALLELCONNECTOR pInterface, bool fForward)
692	{
693	PDRVHOSTPARALLEL pThis = RT_FROM_MEMBER(pInterface, DRVHOSTPARALLEL, CTX_SUFF(IHostParallelConnector));
694	int rc = VINF_SUCCESS;
695	int iMode = 0;
696	if (!fForward)
697	iMode = 1;
698	# ifndef VBOX_WITH_WIN_PARPORT_SUP
699	int rcLnx = ioctl(RTFileToNative(pThis->hFileDevice), PPDATADIR, &iMode);
700	if (RT_UNLIKELY(rcLnx < 0))
701	rc = RTErrConvertFromErrno(errno);
702
703	# else /* VBOX_WITH_WIN_PARPORT_SUP */
704	if (pThis->PortDirectData != 0)
705	{
706	LogFlowFunc(("calling R0 to write CTRL, data=%#x\n", iMode));
707	rc = PDMDrvHlpCallR0(pThis->CTX_SUFF(pDrvIns), DRVHOSTPARALLELR0OP_SETPORTDIRECTION, iMode);
708	AssertRC(rc);
709	}
710	# endif /* VBOX_WITH_WIN_PARPORT_SUP */
711	return rc;
712	}
713
714	/**
715	* @interface_method_impl{PDMIHOSTPARALLELCONNECTOR,pfnWriteControl}
716	*/
717	static DECLCALLBACK(int) drvHostParallelWriteControl(PPDMIHOSTPARALLELCONNECTOR pInterface, uint8_t fReg)
718	{
719	PDRVHOSTPARALLEL pThis = RT_FROM_MEMBER(pInterface, DRVHOSTPARALLEL, CTX_SUFF(IHostParallelConnector));
720	int rc = VINF_SUCCESS;
721
722	LogFlowFunc(("fReg=%#x\n", fReg));
723	# ifndef VBOX_WITH_WIN_PARPORT_SUP
724	int rcLnx = ioctl(RTFileToNative(pThis->hFileDevice), PPWCONTROL, &fReg);
725	if (RT_UNLIKELY(rcLnx < 0))
726	rc = RTErrConvertFromErrno(errno);
727	# else /* VBOX_WITH_WIN_PARPORT_SUP */
728	if (pThis->PortDirectData != 0)
729	{
730	LogFlowFunc(("calling R0 to write CTRL, data=%#x\n", fReg));
731	rc = PDMDrvHlpCallR0(pThis->CTX_SUFF(pDrvIns), DRVHOSTPARALLELR0OP_WRITECONTROL, fReg);
732	AssertRC(rc);
733	}
734	# endif /* VBOX_WITH_WIN_PARPORT_SUP */
735	return rc;
736	}
737
738
739	/**
740	* @interface_method_impl{PDMIHOSTPARALLELCONNECTOR,pfnReadControl}
741	*/
742	static DECLCALLBACK(int) drvHostParallelReadControl(PPDMIHOSTPARALLELCONNECTOR pInterface, uint8_t *pfReg)
743	{
744	PDRVHOSTPARALLEL pThis = RT_FROM_MEMBER(pInterface, DRVHOSTPARALLEL, CTX_SUFF(IHostParallelConnector));
745	int rc = VINF_SUCCESS;
746
747	# ifndef VBOX_WITH_WIN_PARPORT_SUP
748	uint8_t fReg = 0;
749	int rcLnx = ioctl(RTFileToNative(pThis->hFileDevice), PPRCONTROL, &fReg);
750	if (RT_UNLIKELY(rcLnx < 0))
751	rc = RTErrConvertFromErrno(errno);
752	else
753	{
754	LogFlowFunc(("fReg=%#x\n", fReg));
755	*pfReg = fReg;
756	}
757	# else /* VBOX_WITH_WIN_PARPORT_SUP */
758	pfReg = 0; / Initialize the buffer*/
759	if (pThis->PortDirectData != 0)
760	{
761	LogFlowFunc(("calling R0 to read control from parallel port\n"));
762	rc = PDMDrvHlpCallR0(pThis-> CTX_SUFF(pDrvIns), DRVHOSTPARALLELR0OP_READCONTROL, 0);
763	AssertRC(rc);
764	*pfReg = pThis->bReadInControl;
765	}
766	# endif /* VBOX_WITH_WIN_PARPORT_SUP */
767	return rc;
768	}
769
770	/**
771	* @interface_method_impl{PDMIHOSTPARALLELCONNECTOR,pfnReadStatus}
772	*/
773	static DECLCALLBACK(int) drvHostParallelReadStatus(PPDMIHOSTPARALLELCONNECTOR pInterface, uint8_t *pfReg)
774	{
775	PDRVHOSTPARALLEL pThis = RT_FROM_MEMBER(pInterface, DRVHOSTPARALLEL, CTX_SUFF(IHostParallelConnector));
776	int rc = VINF_SUCCESS;
777	# ifndef VBOX_WITH_WIN_PARPORT_SUP
778	uint8_t fReg = 0;
779	int rcLnx = ioctl(RTFileToNative(pThis->hFileDevice), PPRSTATUS, &fReg);
780	if (RT_UNLIKELY(rcLnx < 0))
781	rc = RTErrConvertFromErrno(errno);
782	else
783	{
784	LogFlowFunc(("fReg=%#x\n", fReg));
785	*pfReg = fReg;
786	}
787	# else /* VBOX_WITH_WIN_PARPORT_SUP */
788	pfReg = 0; / Intialize the buffer. */
789	if (pThis->PortDirectData != 0)
790	{
791	LogFlowFunc(("calling R0 to read status from parallel port\n"));
792	rc = PDMDrvHlpCallR0(pThis->CTX_SUFF(pDrvIns), DRVHOSTPARALLELR0OP_READSTATUS, 0);
793	AssertRC(rc);
794	*pfReg = pThis->bReadInStatus;
795	}
796	# endif /* VBOX_WITH_WIN_PARPORT_SUP */
797	return rc;
798	}
799
800	# ifndef VBOX_WITH_WIN_PARPORT_SUP
801
802	static DECLCALLBACK(int) drvHostParallelMonitorThread(PPDMDRVINS pDrvIns, PPDMTHREAD pThread)
803	{
804	PDRVHOSTPARALLEL pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTPARALLEL);
805	struct pollfd aFDs[2];
806
807	/*
808	* We can wait for interrupts using poll on linux hosts.
809	*/
810	while (pThread->enmState == PDMTHREADSTATE_RUNNING)
811	{
812	int rc;
813
814	aFDs[0].fd = RTFileToNative(pThis->hFileDevice);
815	aFDs[0].events = POLLIN;
816	aFDs[0].revents = 0;
817	aFDs[1].fd = RTPipeToNative(pThis->hWakeupPipeR);
818	aFDs[1].events = POLLIN \| POLLERR \| POLLHUP;
819	aFDs[1].revents = 0;
820	rc = poll(aFDs, RT_ELEMENTS(aFDs), -1);
821	if (rc < 0)
822	{
823	AssertMsgFailed(("poll failed with rc=%d\n", RTErrConvertFromErrno(errno)));
824	return RTErrConvertFromErrno(errno);
825	}
826
827	if (pThread->enmState != PDMTHREADSTATE_RUNNING)
828	break;
829	if (rc > 0 && aFDs[1].revents)
830	{
831	if (aFDs[1].revents & (POLLHUP \| POLLERR \| POLLNVAL))
832	break;
833	/* notification to terminate -- drain the pipe */
834	char ch;
835	size_t cbRead;
836	RTPipeRead(pThis->hWakeupPipeR, &ch, 1, &cbRead);
837	continue;
838	}
839
840	/* Interrupt occurred. */
841	rc = pThis->pDrvHostParallelPort->pfnNotifyInterrupt(pThis->pDrvHostParallelPort);
842	AssertRC(rc);
843	}
844
845	return VINF_SUCCESS;
846	}
847
848	/**
849	* Unblock the monitor thread so it can respond to a state change.
850	*
851	* @returns a VBox status code.
852	* @param pDrvIns The driver instance.
853	* @param pThread The send thread.
854	*/
855	static DECLCALLBACK(int) drvHostParallelWakeupMonitorThread(PPDMDRVINS pDrvIns, PPDMTHREAD pThread)
856	{
857	RT_NOREF(pThread);
858	PDRVHOSTPARALLEL pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTPARALLEL);
859	size_t cbIgnored;
860	return RTPipeWrite(pThis->hWakeupPipeW, "", 1, &cbIgnored);
861	}
862
863	# endif /* VBOX_WITH_WIN_PARPORT_SUP */
864
865	/**
866	* Destruct a host parallel driver instance.
867	*
868	* Most VM resources are freed by the VM. This callback is provided so that
869	* any non-VM resources can be freed correctly.
870	*
871	* @param pDrvIns The driver instance data.
872	*/
873	static DECLCALLBACK(void) drvHostParallelDestruct(PPDMDRVINS pDrvIns)
874	{
875	PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
876	LogFlowFunc(("iInstance=%d\n", pDrvIns->iInstance));
877
878	#ifndef VBOX_WITH_WIN_PARPORT_SUP
879	PDRVHOSTPARALLEL pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTPARALLEL);
880	if (pThis->hFileDevice != NIL_RTFILE)
881	ioctl(RTFileToNative(pThis->hFileDevice), PPRELEASE);
882
883	if (pThis->hWakeupPipeW != NIL_RTPIPE)
884	{
885	int rc = RTPipeClose(pThis->hWakeupPipeW); AssertRC(rc);
886	pThis->hWakeupPipeW = NIL_RTPIPE;
887	}
888
889	if (pThis->hWakeupPipeR != NIL_RTPIPE)
890	{
891	int rc = RTPipeClose(pThis->hWakeupPipeR); AssertRC(rc);
892	pThis->hWakeupPipeR = NIL_RTPIPE;
893	}
894
895	if (pThis->hFileDevice != NIL_RTFILE)
896	{
897	int rc = RTFileClose(pThis->hFileDevice); AssertRC(rc);
898	pThis->hFileDevice = NIL_RTFILE;
899	}
900
901	if (pThis->pszDevicePath)
902	{
903	MMR3HeapFree(pThis->pszDevicePath);
904	pThis->pszDevicePath = NULL;
905	}
906	#endif /* !VBOX_WITH_WIN_PARPORT_SUP */
907	}
908
909	/**
910	* Construct a host parallel driver instance.
911	*
912	* @copydoc FNPDMDRVCONSTRUCT
913	*/
914	static DECLCALLBACK(int) drvHostParallelConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
915	{
916	RT_NOREF(fFlags);
917	PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
918	LogFlowFunc(("iInstance=%d\n", pDrvIns->iInstance));
919	PDRVHOSTPARALLEL pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTPARALLEL);
920
921
922	/*
923	* Init basic data members and interfaces.
924	*
925	* Must be done before returning any failure because we've got a destructor.
926	*/
927	pThis->hFileDevice = NIL_RTFILE;
928	#ifndef VBOX_WITH_WIN_PARPORT_SUP
929	pThis->hWakeupPipeR = NIL_RTPIPE;
930	pThis->hWakeupPipeW = NIL_RTPIPE;
931	#endif
932
933	pThis->pDrvInsR3 = pDrvIns;
934	#ifdef VBOX_WITH_DRVINTNET_IN_R0
935	pThis->pDrvInsR0 = PDMDRVINS_2_R0PTR(pDrvIns);
936	#endif
937
938	/* IBase. */
939	pDrvIns->IBase.pfnQueryInterface = drvHostParallelQueryInterface;
940	/* IHostParallelConnector. */
941	pThis->IHostParallelConnectorR3.pfnWrite = drvHostParallelWrite;
942	pThis->IHostParallelConnectorR3.pfnRead = drvHostParallelRead;
943	pThis->IHostParallelConnectorR3.pfnSetPortDirection = drvHostParallelSetPortDirection;
944	pThis->IHostParallelConnectorR3.pfnWriteControl = drvHostParallelWriteControl;
945	pThis->IHostParallelConnectorR3.pfnReadControl = drvHostParallelReadControl;
946	pThis->IHostParallelConnectorR3.pfnReadStatus = drvHostParallelReadStatus;
947
948	/*
949	* Validate the config.
950	*/
951	if (!CFGMR3AreValuesValid(pCfg, "DevicePath\0"))
952	return PDMDRV_SET_ERROR(pDrvIns, VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES,
953	N_("Unknown host parallel configuration option, only supports DevicePath"));
954
955	/*
956	* Query configuration.
957	*/
958	/* Device */
959	int rc = CFGMR3QueryStringAlloc(pCfg, "DevicePath", &pThis->pszDevicePath);
960	if (RT_FAILURE(rc))
961	{
962	AssertMsgFailed(("Configuration error: query for \"DevicePath\" string returned %Rra.\n", rc));
963	return rc;
964	}
965
966	/*
967	* Open the device
968	*/
969	/** @todo exclusive access on windows? */
970	rc = RTFileOpen(&pThis->hFileDevice, pThis->pszDevicePath, RTFILE_O_READWRITE \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
971	if (RT_FAILURE(rc))
972	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS, N_("Parallel#%d could not open '%s'"),
973	pDrvIns->iInstance, pThis->pszDevicePath);
974
975	#ifndef VBOX_WITH_WIN_PARPORT_SUP
976	/*
977	* Try to get exclusive access to parallel port
978	*/
979	rc = ioctl(RTFileToNative(pThis->hFileDevice), PPEXCL);
980	if (rc < 0)
981	return PDMDrvHlpVMSetError(pDrvIns, RTErrConvertFromErrno(errno), RT_SRC_POS,
982	N_("Parallel#%d could not get exclusive access for parallel port '%s'"
983	"Be sure that no other process or driver accesses this port"),
984	pDrvIns->iInstance, pThis->pszDevicePath);
985
986	/*
987	* Claim the parallel port
988	*/
989	rc = ioctl(RTFileToNative(pThis->hFileDevice), PPCLAIM);
990	if (rc < 0)
991	return PDMDrvHlpVMSetError(pDrvIns, RTErrConvertFromErrno(errno), RT_SRC_POS,
992	N_("Parallel#%d could not claim parallel port '%s'"
993	"Be sure that no other process or driver accesses this port"),
994	pDrvIns->iInstance, pThis->pszDevicePath);
995
996	/*
997	* Get the IHostParallelPort interface of the above driver/device.
998	*/
999	pThis->pDrvHostParallelPort = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIHOSTPARALLELPORT);
1000	if (!pThis->pDrvHostParallelPort)
1001	return PDMDrvHlpVMSetError(pDrvIns, VERR_PDM_MISSING_INTERFACE_ABOVE, RT_SRC_POS, N_("Parallel#%d has no parallel port interface above"),
1002	pDrvIns->iInstance);
1003
1004	/*
1005	* Create wakeup pipe.
1006	*/
1007	rc = RTPipeCreate(&pThis->hWakeupPipeR, &pThis->hWakeupPipeW, 0 /fFlags/);
1008	AssertRCReturn(rc, rc);
1009
1010	/*
1011	* Start in SPP mode.
1012	*/
1013	pThis->enmModeCur = PDM_PARALLEL_PORT_MODE_INVALID;
1014	rc = drvHostParallelSetMode(pThis, PDM_PARALLEL_PORT_MODE_SPP);
1015	if (RT_FAILURE(rc))
1016	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS, N_("HostParallel#%d cannot change mode of parallel mode to SPP"), pDrvIns->iInstance);
1017
1018	/*
1019	* Start waiting for interrupts.
1020	*/
1021	rc = PDMDrvHlpThreadCreate(pDrvIns, &pThis->pMonitorThread, pThis, drvHostParallelMonitorThread, drvHostParallelWakeupMonitorThread, 0,
1022	RTTHREADTYPE_IO, "ParMon");
1023	if (RT_FAILURE(rc))
1024	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS, N_("HostParallel#%d cannot create monitor thread"), pDrvIns->iInstance);
1025
1026	#else /* VBOX_WITH_WIN_PARPORT_SUP */
1027
1028	pThis->PortDirectData = 0;
1029	pThis->PortDirectControl = 0;
1030	pThis->PortDirectStatus = 0;
1031	rc = drvHostParallelGetWinHostIoPorts(pThis);
1032	if (RT_FAILURE(rc))
1033	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
1034	N_("HostParallel#%d: Could not get direct access to the host parallel port!! (rc=%Rrc)"),
1035	pDrvIns->iInstance, rc);
1036
1037	#endif /* VBOX_WITH_WIN_PARPORT_SUP */
1038	return VINF_SUCCESS;
1039	}
1040
1041
1042	/**
1043	* Char driver registration record.
1044	*/
1045	const PDMDRVREG g_DrvHostParallel =
1046	{
1047	/* u32Version */
1048	PDM_DRVREG_VERSION,
1049	/* szName */
1050	"HostParallel",
1051	/* szRCMod */
1052	"",
1053	/* szR0Mod */
1054	"VBoxDDR0.r0",
1055	/* pszDescription */
1056	"Parallel host driver.",
1057	/* fFlags */
1058	# if defined(VBOX_WITH_WIN_PARPORT_SUP)
1059	PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT \| PDM_DRVREG_FLAGS_R0,
1060	# else
1061	PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
1062	# endif
1063	/* fClass. */
1064	PDM_DRVREG_CLASS_CHAR,
1065	/* cMaxInstances */
1066	~0U,
1067	/* cbInstance */
1068	sizeof(DRVHOSTPARALLEL),
1069	/* pfnConstruct */
1070	drvHostParallelConstruct,
1071	/* pfnDestruct */
1072	drvHostParallelDestruct,
1073	/* pfnRelocate */
1074	NULL,
1075	/* pfnIOCtl */
1076	NULL,
1077	/* pfnPowerOn */
1078	NULL,
1079	/* pfnReset */
1080	NULL,
1081	/* pfnSuspend */
1082	NULL,
1083	/* pfnResume */
1084	NULL,
1085	/* pfnAttach */
1086	NULL,
1087	/* pfnDetach */
1088	NULL,
1089	/* pfnPowerOff */
1090	NULL,
1091	/* pfnSoftReset */
1092	NULL,
1093	/* u32EndVersion */
1094	PDM_DRVREG_VERSION
1095	};
1096	#endif /IN_RING3/
1097

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source: vbox/trunk/src/VBox/Devices/Parallel/DrvHostParallel.cpp@ 91482

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