WebSVN – f9daq – Blame – //drivers/wiener_pcicc32/pcicc32/pcicc32/pcicc32_drv.c

Rev	Author	Line No.	Line
23	f9daq	1	//-------------------------------------------------------------------------
		2	// WINNT driver for PCICC32 (CAMAC) interface of ARW Elektronik, Germany --
		3	// the main body of the driver
		4	//
		5	// (c) 2000-2002 ARW Elektronik
		6	//
		7	// this source code is published under GPL (Open Source). You can use, redistribute and
		8	// modify it unless this header is not modified or deleted. No warranty is given that
		9	// this software will work like expected.
		10	// This product is not authorized for use as critical component in life support systems
		11	// wihout the express written approval of ARW Elektronik Germany.
		12	//
		13	// Please announce changes and hints to ARW Elektronik
		14	//
		15	// what who when
		16	// started out of pcivme sources AR 25.03.2000
		17	// added IRQ handling AR 24.02.2001
		18	// Added AUTOREAD functionality AR 17.03.2001
		19	// Added LCR_READ AR 31.03.2001
		20	// resource allocation registers idle entries too AR 25.11.2001
		21	// changed making procedure (only VCC > 6.0) AR 30.05.2002
		22	// totally rearanged resource alloc for WIN2000 AR 01.06.2002
		23	// version 2.14 eleminates PLXBUG in WIN2000 AR 05.06.2002
		24	// added KeSynchronizeExecution for interrupt sync AR 16.06.2002
		25	//
		26
		27	//------------------------------------------------------------------------
		28	// DEFINES
		29	//
		30	#ifndef DWORD
		31	#define DWORD ULONG
		32	#endif
		33
		34	#ifndef WORD
		35	#define WORD USHORT
		36	#endif
		37
		38	#define CTL_INDEX(x) ((x >> 2) & 0xFF) // get user control code as index
		39	#define RESOURCE_ENTRY_COUNT 6 // WIN2000 forces to claim all entries
		40
		41	#define DOS_DEVICE_NAME L"\\DosDevices\\PCICC32:"
		42
		43	//-------------------------------------------------------------------------
		44	// INCLUDES
		45	//
		46
		47	#include <ntddk.h>
		48	#include <devioctl.h>
		49	// #include <wdm.h>
		50
		51	#include <pcicc32_drv.h>
		52	#include <pcicc32.h>
		53	#include <pcicc32_v.h>
		54	#include <pcicc32_i.h>
		55	#include <pcicc32_io.h>
		56
		57
		58	//------------------------------------------------------------------------
		59	// TYPEDEFS
		60	//
		61	typedef struct
		62	{
		63	FILE_OBJ *file_obj;
		64	PCIADA *pciada;
		65	PVOID pOutputBuffer;
		66	PVOID pInputBuffer;
		67	ULONG Address;
		68	DWORD Length;
		69	} SYNC_CONTEXT;
		70
		71	//------------------------------------------------------------------------
		72	// GLOBALS
		73	//
		74
		75	//------------------------------------------------------------------------
		76	// FUNCTIONS
		77	//
		78
		79	//------------------------------------------------------------------------
		80	// for debug only - print interrupt line
		81	//
		82	#if DBG
		83	void PrintInterruptLine(int Bus, int Slot)
		84	{
		85	PCI_COMMON_CONFIG pci_config;
		86
		87	HalGetBusData( PCIConfiguration, // Bustype
		88	Bus, // PCI-Busnumber
		89	Slot, // Slotnumber
		90	(PVOID) &(pci_config), // Pointer for the PCI-Information
		91	sizeof(PCI_COMMON_CONFIG));
		92
		93	KdPrint(("Irql: %d\n", pci_config.u.type0.InterruptLine));
		94	}
		95	#endif
		96
		97	//------------------------------------------------------------------------
		98	// get the cc32 number out of the filename
		99	//
		100	NTSTATUS InterpreteFileName(PCHAR name, int *nCC32)
		101	{
		102	char *ptr = name;
		103	char *n = "cc32_";
		104	int h = -1; // high part
		105	int l = -1; // low part
		106
		107	if (*ptr == '\\') ptr++; // jump over leading ...
		108
		109	while (*n) // compare the basename
		110	if (n == tolower(ptr))
		111	{
		112	n++;
		113	ptr++;
		114	}
		115	else
		116	return STATUS_NO_SUCH_FILE;
		117
		118	h = *ptr - '0'; // get the number
		119	ptr++;
		120	l = *ptr - '0';
		121
		122	if (*ptr == 0) // still over the end ??
		123	{
		124	l = h;
		125	h = 0;
		126	}
		127	else
		128	ptr++;
		129
		130	if ((h < 0) \|\| (l < 0) \|\| (*ptr != 0)) // anything wrong ??
		131	return STATUS_NO_SUCH_FILE;
		132
		133	nCC32 = (h 10) + l; // calculate number
		134
		135	if (*nCC32 >= PCICC32_MAX_CC32) // out of range ??
		136	return STATUS_NO_SUCH_FILE;
		137
		138	return STATUS_SUCCESS;
		139	}
		140
		141	//------------------------------------------------------------------------
		142	// the ultimate driver unload
		143	VOID PCICC32Unload(PDRIVER_OBJECT driverObj)
		144	{
		145	int i;
		146	UNICODE_STRING symbol_name;
		147	DEVICE_EXT ext = (DEVICE_EXT)(driverObj->DeviceObject->DeviceExtension);
		148	int nPCIADAs = ext->nPCIADAs;
		149	PCIADA *pciada;
		150
		151	KdPrint(("PCICC32Unload()\n"));
		152
		153	switch (ext->nInitState)
		154	{
		155	case 8:
		156	case 7:
		157	case 6:
		158	// stop interrupts and shut off
		159	PCICC32DeInitPCIADAs(driverObj->DeviceObject);
		160	PCICC32DisConnectInterrupt(driverObj->DeviceObject);
		161	case 5:
		162	// KeInitializeDpc has no counterpart
		163	case 4:
		164	for (i = 0; i < nPCIADAs; i++)
		165	{
		166	pciada = &ext->pciada[i];
		167	if (pciada->pvVirtLcr != NULL)
		168	MmUnmapIoSpace(pciada->pvVirtLcr, LCR_SPACE);
		169	if (pciada->pvVirtIfr != NULL)
		170	MmUnmapIoSpace(pciada->pvVirtIfr, IFR_SPACE);
		171	}
		172	case 3:
		173	// HalGetInterruptVector has no counterpart
		174	case 2:
		175	// HalTranslateBusAddress has no counterpart
		176	case 1:
		177	PCICC32FreeResources(driverObj->DeviceObject);
		178	default:
		179	case 0:
		180	RtlInitUnicodeString(&symbol_name, DOS_DEVICE_NAME);
		181
		182	// delete the symbolicLink in the registry
		183	IoDeleteSymbolicLink( &symbol_name);
		184
		185	// delete the deviceObject
		186	IoDeleteDevice(driverObj->DeviceObject);
		187	}
		188
		189	KdPrint(("PCICC32Unload() OK.\n"));
		190	}
		191
		192
		193	//------------------------------------------------------------------------
		194	// called at CreateFile()
		195	NTSTATUS PCICC32Open(PDEVICE_OBJECT deviceObj, PIRP Irp)
		196	{
		197	NTSTATUS result = STATUS_SUCCESS;
		198	ANSI_STRING name;
		199	int nCC32;
		200	int i;
		201	DEVICE_EXT pDevExt = (DEVICE_EXT )(deviceObj->DeviceExtension);
		202	PCIADA *pciada;
		203	FILE_OBJ *file_obj;
		204
		205	name.Buffer = NULL;
		206	name.MaximumLength = 80;
		207
		208	result = RtlUnicodeStringToAnsiString(&name, &(Irp->Tail.Overlay.OriginalFileObject->FileName), TRUE);
		209	if (result != STATUS_SUCCESS) goto fin;
		210
		211	KdPrint(("PCICC32Open(%s)\n", name.Buffer));
		212
		213	result = InterpreteFileName(name.Buffer, &nCC32);
		214	if (result != STATUS_SUCCESS) goto fin;
		215
		216	KdPrint(("PCICC32Open(%d)\n", nCC32));
		217	RtlFreeAnsiString(&name);
		218
		219	file_obj = (FILE_OBJ *)ExAllocatePool(NonPagedPool, sizeof(FILE_OBJ));
		220	if (file_obj == (FILE_OBJ *)NULL)
		221	{
		222	result = STATUS_NO_MEMORY;
		223	goto fin;
		224	}
		225
		226	file_obj->uwAssociatedCC32 = (USHORT) nCC32;
		227
		228	Irp->Tail.Overlay.OriginalFileObject->FsContext = (PVOID)file_obj;
		229
		230	result = PCICC32ScanCC32(deviceObj);
		231	if (result != STATUS_SUCCESS) goto fin;
		232
		233	for (i = 0; i < pDevExt->nPCIADAs; i++)
		234	{
		235	pciada = &pDevExt->pciada[i];
		236
		237	if (pciada->wModuleNumber == nCC32)
		238	{
		239	pDevExt->cc32[nCC32] = pciada; // create association
		240	pciada->dwLinkCount++;
		241
		242	enableCC32(pciada);
		243	break;
		244	}
		245	}
		246
		247	if (i >= pDevExt->nPCIADAs)
		248	{
		249	result = STATUS_NO_SUCH_FILE;
		250	goto fin;
		251	}
		252
		253	fin:
		254	Irp->IoStatus.Status = result;
		255	Irp->IoStatus.Information = 0;
		256	IoCompleteRequest(Irp, IO_NO_INCREMENT);
		257
		258	return result;
		259	}
		260
		261	//------------------------------------------------------------------------
		262	// called at close()
		263	NTSTATUS PCICC32Close(PDEVICE_OBJECT deviceObj, PIRP Irp)
		264	{
		265	DEVICE_EXT pDevExt = (DEVICE_EXT )(deviceObj->DeviceExtension);
		266	FILE_OBJ file_obj = (FILE_OBJ )NULL;
		267	PCIADA *pciada;
		268
		269	file_obj = (FILE_OBJ *)Irp->Tail.Overlay.OriginalFileObject->FsContext;
		270
		271	KdPrint(("PCICC32Close(%d)\n", file_obj->uwAssociatedCC32));
		272
		273	if (file_obj != (FILE_OBJ *)NULL)
		274	{
		275	pciada = pDevExt->cc32[file_obj->uwAssociatedCC32];
		276	pciada->dwLinkCount--;
		277
		278	// disable interrupts when closing
		279	if (pciada->pIrqControlFile == file_obj)
		280	{
		281	pciada->pIrqControlFile = (FILE_OBJ *)NULL;
		282	globalInterruptDisable(pciada);
		283	}
		284
		285	// cancel any blocking Irp origin from this file
		286	if (file_obj->blockingIrp != (PIRP)NULL)
		287	file_obj->blockingIrp = (PIRP)NULL;
		288
		289	if (pciada->pBlockingIrp == &file_obj->blockingIrp)
		290	pciada->pBlockingIrp = (PIRP *)NULL;
		291
		292	if (!pciada->dwLinkCount)
		293	disableCC32(pciada);
		294
		295	ExFreePool(file_obj);
		296	Irp->Tail.Overlay.OriginalFileObject->FsContext = (FILE_OBJ *)NULL;
		297	}
		298
		299	KdPrint(("PCICC32Close OK\n"));
		300
		301	Irp->IoStatus.Status = STATUS_SUCCESS;
		302	Irp->IoStatus.Information = 0;
		303	IoCompleteRequest(Irp, IO_NO_INCREMENT);
		304
		305	return STATUS_SUCCESS;
		306	}
		307
		308	//------------------------------------------------------------------------
		309	// called at
		310	NTSTATUS PCICC32Shutdown(PDEVICE_OBJECT deviceObj, PIRP irp)
		311	{
		312	UNREFERENCED_PARAMETER(irp);
		313	KdPrint(("PCICC32Shutdown()\n"));
		314
		315	// deinit interfaces and interrupts
		316	PCICC32DeInitPCIADAs(deviceObj);
		317
		318	KdPrint(("PCICC32Shutdown() OK\n"));
		319
		320	return STATUS_SUCCESS;
		321	}
		322
		323	//------------------------------------------------------------------------
		324	// called at ioctl()
		325	NTSTATUS PCICC32DeviceControl(PDEVICE_OBJECT deviceObj, PIRP Irp)
		326	{
		327	PIO_STACK_LOCATION IrpStack;
		328	int nIndex;
		329
		330	IrpStack = IoGetCurrentIrpStackLocation(Irp);
		331	nIndex = CTL_INDEX(IrpStack->Parameters.DeviceIoControl.IoControlCode);
		332
		333	KdPrint(("PCICC32DeviceControl(%d / 0x%08x)\n", nIndex, Irp->Tail.Overlay.OriginalFileObject));
		334
		335	if (nIndex > CTL_INDEX(PCICC32_LAST_CTL_CODE))
		336	{
		337	KdPrint(("LastIndex(%d)\n", CTL_INDEX(PCICC32_LAST_CTL_CODE)));
		338	Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
		339	Irp->IoStatus.Information = 0;
		340	IoCompleteRequest(Irp,IO_NO_INCREMENT);
		341
		342	KdPrint(("PCICC32DeviceControl() FAIL.\n"));
		343
		344	return STATUS_UNSUCCESSFUL;
		345	}
		346
		347	return ioctl[nIndex](deviceObj, Irp, IrpStack);
		348	}
		349
		350
		351	//------------------------------------------------------------------------
		352	// called at read()
		353	static BOOLEAN PCICC32Read_kernel(PVOID pvContext)
		354	{
		355	register SYNC_CONTEXT context = (SYNC_CONTEXT )pvContext;
		356	register ULONG i = 0;
		357	USHORT wCntrl;
		358
		359	wCntrl = READ_REGISTER_USHORT(context->pciada->pwCntrl);
		360	if (context->file_obj->wBlockTransfer & AUTOREAD)
		361	{
		362	wCntrl &= ~0x0004; // enable autoread - set bit to 0
		363	WRITE_REGISTER_USHORT(context->pciada->pwCntrl, wCntrl);
		364	}
		365
		366	// do the read ---
		367	if (context->file_obj->wBlockTransfer & UNTIL_NOT_Q)
		368	{
		369	// read first time to get Q information
		370	register ULONG tempBuffer = READ_REGISTER_ULONG((ULONG *)context->Address);
		371
		372	if (context->file_obj->wAccessType == WORD_ACCESS)
		373	{
		374	PUSHORT pwBuffer = (PUSHORT)context->pOutputBuffer;
		375	PUSHORT pwBufEnd = (PUSHORT)((PUCHAR)context->pOutputBuffer + context->Length);
		376
		377	while ((tempBuffer & 0x80000000) && (pwBuffer < pwBufEnd))
		378	{
		379	*pwBuffer++ = (USHORT)tempBuffer;
		380	tempBuffer = READ_REGISTER_ULONG((ULONG *)context->Address); // read the same address multiple times as long to get Q
		381	i++;
		382	}
		383	}
		384	else
		385	{
		386	// LONG_ACCESS
		387	PULONG pdwBuffer = (PULONG)context->pOutputBuffer;
		388	PULONG pdwBufEnd = (PULONG)((PUCHAR)context->pOutputBuffer + context->Length);
		389
		390	while ((tempBuffer & 0x80000000) && (pdwBuffer < pdwBufEnd))
		391	{
		392	*pdwBuffer++ = tempBuffer;
		393	tempBuffer = READ_REGISTER_ULONG((ULONG *)context->Address); // read the same address multiple times as long to get Q
		394	i++;
		395	}
		396	}
		397
		398	i *= context->file_obj->wAccessType;
		399
		400	KdPrint(("UNTIL_NOT_Q, 0x%08x bytes read\n", i));
		401	}
		402	else // no UNTIL_NOT_Q
		403	{
		404	while (i < context->Length)
		405	{
		406	context->file_obj->fRead((void )((PUCHAR)context->pOutputBuffer + i), (void )context->Address); // read the same address multiple times
		407	i += context->file_obj->wAccessType;
		408	}
		409	}
		410
		411	// disable autoread unconditionally - set bit to 1
		412	wCntrl \|= 0x0004;
		413	WRITE_REGISTER_USHORT(context->pciada->pwCntrl, wCntrl);
		414
		415	context->Length = i;
		416
		417	return TRUE;
		418	}
		419
		420	NTSTATUS PCICC32Read(PDEVICE_OBJECT device_Obj, PIRP Irp)
		421	{
		422	NTSTATUS Status = STATUS_SUCCESS;
		423	PIO_STACK_LOCATION IrpStack = IoGetCurrentIrpStackLocation(Irp);
		424	DEVICE_EXT pDevExt = (DEVICE_EXT )(device_Obj->DeviceExtension);
		425	SYNC_CONTEXT context;
		426
		427	context.file_obj = (FILE_OBJ *)Irp->Tail.Overlay.OriginalFileObject->FsContext;
		428	context.pciada = pDevExt->cc32[context.file_obj->uwAssociatedCC32];
		429	context.pOutputBuffer = ((void *)(MmGetSystemAddressForMdlSafe(Irp->MdlAddress, NormalPagePriority)));
		430	context.Address = IrpStack->Parameters.Read.ByteOffset.LowPart;
		431	context.Length = 0;
		432
		433	KdPrint(("PCICC32Read(%d)\n", context.file_obj->uwAssociatedCC32));
		434
		435	if (context.Address > IFR_SPACE)
		436	Status = STATUS_ACCESS_VIOLATION;
		437	else
		438	{
		439	// do here in between what has to be done -----------------
		440	context.Length = IrpStack->Parameters.Read.Length;
		441	KdPrint(("Address = 0x%08x, Length = 0x%08x\n", context.Address, context.Length));
		442	context.Address = (ULONG)context.pciada->pvVirtIfr + context.Address;
		443
		444	KeSynchronizeExecution(context.pciada->InterruptObject, PCICC32Read_kernel, &context);
		445	// do here in between what has to be done end -------------
		446	}
		447
		448	Irp->IoStatus.Status = Status;
		449	Irp->IoStatus.Information = context.Length;
		450	IoCompleteRequest(Irp,IO_NO_INCREMENT);
		451
		452	KdPrint(("PCICC32Read(), Status = 0x%08x\n", Status));
		453
		454	return Status;
		455	}
		456
		457
		458	//------------------------------------------------------------------------
		459	// called at write()
		460	static BOOLEAN PCICC32Write_kernel(PVOID pvContext)
		461	{
		462	register SYNC_CONTEXT context = (SYNC_CONTEXT )pvContext;
		463	register ULONG i = 0;
		464
		465	// do the write ---
		466	while (i < context->Length)
		467	{
		468	context->file_obj->fWrite((void )context->Address, (void )((PUCHAR)context->pInputBuffer + i)); // write the same address multiple times
		469	i += context->file_obj->wAccessType;
		470	}
		471
		472	context->Length = i;
		473
		474	return TRUE;
		475	}
		476
		477	NTSTATUS PCICC32Write(PDEVICE_OBJECT device_Obj, PIRP Irp)
		478	{
		479	NTSTATUS Status = STATUS_SUCCESS;
		480	PIO_STACK_LOCATION IrpStack = IoGetCurrentIrpStackLocation(Irp);
		481	DEVICE_EXT pDevExt = (DEVICE_EXT )(device_Obj->DeviceExtension);
		482	SYNC_CONTEXT context;
		483
		484	context.file_obj = (FILE_OBJ *)Irp->Tail.Overlay.OriginalFileObject->FsContext;
		485	context.pciada = pDevExt->cc32[context.file_obj->uwAssociatedCC32];
		486	context.pInputBuffer = ((void *)(MmGetSystemAddressForMdlSafe(Irp->MdlAddress, NormalPagePriority)));
		487	context.Address = IrpStack->Parameters.Read.ByteOffset.LowPart;
		488	context.Length = 0;
		489
		490	KdPrint(("PCICC32Write(%d)\n", context.file_obj->uwAssociatedCC32));
		491
		492	if (context.Address > IFR_SPACE)
		493	Status = STATUS_ACCESS_VIOLATION;
		494	else
		495	{
		496	// register ULONG i = 0;
		497
		498	// do here in between what has to be done -----------------
		499	context.Length = IrpStack->Parameters.Read.Length;
		500	KdPrint(("Address = 0x%08x, Length = 0x%08x\n", context.Address, context.Length));
		501	context.Address = (ULONG)context.pciada->pvVirtIfr + context.Address;
		502
		503	KeSynchronizeExecution(context.pciada->InterruptObject, PCICC32Write_kernel, &context);
		504	// do here in between what has to be done end -------------
		505	}
		506
		507
		508	Irp->IoStatus.Status = Status;
		509	Irp->IoStatus.Information = context.Length;
		510	IoCompleteRequest(Irp,IO_NO_INCREMENT);
		511
		512	KdPrint(("PCICC32Write(), Status = 0x%08x\n", Status));
		513
		514	return Status;
		515	}
		516
		517	//------------------------------------------------------------------------
		518	// search for pciada's
		519	//
		520	NTSTATUS SearchDevices(PDEVICE_OBJECT device_Obj)
		521	{
		522	PCI_SLOT_NUMBER SlotNumber;
		523	PCI_COMMON_CONFIG pci_config;
		524	PCIADA *pciada;
		525	ULONG length;
		526	int *found;
		527	int i,j,k;
		528
		529	KdPrint(("SearchDevices()\n"));
		530
		531	// prepare structures ----------------------------------------
		532	found = &((DEVICE_EXT*)(device_Obj->DeviceExtension))->nPCIADAs;
		533	*found = 0;
		534	for (i = 0; i < PCICC32_MAX_PCIADA; i++)
		535	{
		536	pciada = &((DEVICE_EXT*)(device_Obj->DeviceExtension))->pciada[i];
		537
		538	pciada->Bus = -1;
		539	pciada->Slot.u.AsULONG = 0xFFFFFFFF;
		540	}
		541
		542	// search for pciada's ---------------------------------------
		543	SlotNumber.u.bits.Reserved = 0;
		544
		545	for (j = 0; j < PCI_MAX_BUSES; j++)
		546	{
		547	for (i = 0; i < PCI_MAX_DEVICES; i++)
		548	{
		549	SlotNumber.u.bits.DeviceNumber = i;
		550	for (k = 0; k < PCI_MAX_FUNCTION; k++)
		551	{
		552	SlotNumber.u.bits.FunctionNumber = k;
		553	length = HalGetBusData( PCIConfiguration, // Bustype
		554	j, // PCI-Busnumber
		555	SlotNumber.u.AsULONG, // Slotnumber
		556	(PVOID) &(pci_config), // Pointer for the PCI-Information
		557	sizeof(PCI_COMMON_CONFIG) );
		558
		559	if ((pci_config.VendorID == PCICC32_VENDOR_ID) &&
		560	(pci_config.DeviceID == PCICC32_DEVICE_ID) &&
		561	(pci_config.u.type0.SubSystemID == PCICC32_SUBSYS_ID) &&
		562	(pci_config.u.type0.SubVendorID == PCICC32_SUBVEN_ID) &&
		563	(pci_config.u.type0.BaseAddresses[3]))
		564	{
		565	pciada = &((DEVICE_EXT)(device_Obj->DeviceExtension))->pciada[found];
		566
		567	memcpy(&pciada->PCIDevice, &pci_config, sizeof(pci_config));
		568	pciada->Slot = SlotNumber;
		569	pciada->Bus = j;
		570
		571	KdPrint(("PCIADA found @ Bus/Slot %d/%d.\n", pciada->Bus, pciada->Slot.u.AsULONG));
		572
		573	(*found)++;
		574	if (*found >= PCICC32_MAX_PCIADA) return STATUS_SUCCESS;
		575	}
		576	}
		577	}
		578	}
		579
		580	return STATUS_SUCCESS;
		581	}
		582
		583	//---------------------------------------------------------------
		584	// function to call for bug fix of PLX9050 build in bug
		585	//
		586	NTSTATUS PLX9050BugFix(PDEVICE_OBJECT device_Obj)
		587	{
		588	DEVICE_EXT DeviceExtension = (DEVICE_EXT)device_Obj->DeviceExtension;
		589	int i;
		590	ULONG dwData;
		591	PCIADA *pciada;
		592
		593	KdPrint(("PLX9050BugFix()\n"));
		594
		595	for (i = 0; i < DeviceExtension->nPCIADAs; i++)
		596	{
		597	pciada = &DeviceExtension->pciada[i];
		598
		599	if ((dwData = pciada->PCIDevice.u.type0.BaseAddresses[0]) & 0x80)
		600	{
		601	KdPrint(("Changing address 0:0x%p with 4:0x%p\n",
		602	pciada->PCIDevice.u.type0.BaseAddresses[0],
		603	pciada->PCIDevice.u.type0.BaseAddresses[4]));
		604
		605	pciada->PCIDevice.u.type0.BaseAddresses[0] = // exchange
		606	pciada->PCIDevice.u.type0.BaseAddresses[4];
		607	pciada->PCIDevice.u.type0.BaseAddresses[4] = dwData;
		608
		609	if (HalSetBusDataByOffset(PCIConfiguration, pciada->Bus,
		610	pciada->Slot.u.AsULONG,
		611	(PVOID)&pciada->PCIDevice.u.type0.BaseAddresses[0],
		612	0x10, 4) != 4)
		613	return STATUS_UNSUCCESSFUL;
		614
		615	if (HalSetBusDataByOffset(PCIConfiguration, pciada->Bus,
		616	pciada->Slot.u.AsULONG,
		617	(PVOID)&pciada->PCIDevice.u.type0.BaseAddresses[4],
		618	0x20, 4) != 4)
		619	return STATUS_UNSUCCESSFUL;
		620	}
		621
		622	if ((dwData = pciada->PCIDevice.u.type0.BaseAddresses[1]) & 0x80)
		623	{
		624	KdPrint(("Changing address 1:0x%p with 5:0x%p\n",
		625	pciada->PCIDevice.u.type0.BaseAddresses[1],
		626	pciada->PCIDevice.u.type0.BaseAddresses[5]));
		627
		628	pciada->PCIDevice.u.type0.BaseAddresses[1] = // exchange
		629	pciada->PCIDevice.u.type0.BaseAddresses[5];
		630	pciada->PCIDevice.u.type0.BaseAddresses[5] = dwData;
		631
		632	if (HalSetBusDataByOffset(PCIConfiguration, pciada->Bus,
		633	pciada->Slot.u.AsULONG,
		634	(PVOID)&pciada->PCIDevice.u.type0.BaseAddresses[1],
		635	0x14, 4) != 4)
		636	return STATUS_UNSUCCESSFUL;
		637
		638	if (HalSetBusDataByOffset(PCIConfiguration, pciada->Bus,
		639	pciada->Slot.u.AsULONG,
		640	(PVOID)&pciada->PCIDevice.u.type0.BaseAddresses[5],
		641	0x24, 4) != 4)
		642	return STATUS_UNSUCCESSFUL;
		643	}
		644	}
		645
		646	return STATUS_SUCCESS;
		647	}
		648
		649
		650	//------------------------------------------------------------------------
		651	// reserve resources for PCIADAs
		652	//
		653	NTSTATUS PCICC32ExtractResources(PCIADA *pciada, PCM_RESOURCE_LIST pList)
		654	{
		655	PCM_RESOURCE_LIST pResourceList;
		656	PCM_FULL_RESOURCE_DESCRIPTOR pFullDescriptor;
		657	PCM_PARTIAL_RESOURCE_LIST pPartialList;
		658	PCM_PARTIAL_RESOURCE_DESCRIPTOR pPartialDescriptor;
		659	int i;
		660	int bug = 0;
		661
		662	KdPrint(("PCICC32ExtractResources()\n"));
		663
		664	pResourceList = pList;
		665	pFullDescriptor = pResourceList->List;
		666	pPartialList = &pFullDescriptor->PartialResourceList;
		667
		668	for (i=0; i<(int)pPartialList->Count; i++)
		669	{
		670	pPartialDescriptor = &pPartialList->PartialDescriptors[i];
		671	switch (pPartialDescriptor->Type)
		672	{
		673	case CmResourceTypeInterrupt:
		674	pciada->Irql = (KIRQL)pPartialDescriptor->u.Interrupt.Level;
		675	pciada->Vector = pPartialDescriptor->u.Interrupt.Vector;
		676	pciada->Affinity = pPartialDescriptor->u.Interrupt.Affinity;
		677
		678	KdPrint(("Irq : Irql: %d, Vector: %d, Affinity: %d\n",
		679	pciada->Irql, pciada->Vector, pciada->Affinity));
		680	break;
		681	case CmResourceTypeDma:
		682	KdPrint(("Dma : \n"));
		683	break;
		684	case CmResourceTypePort:
		685
		686	KdPrint(("Port : 0x%p\n", pPartialDescriptor->u.Port.Start));
		687	break;
		688	case CmResourceTypeMemory:
		689	// special handling of PLXBUG here because of WIN2000
		690	// WIN2000 doesn't recognize late address changes
		691	if (!bug)
		692	{
		693	if (i == 0)
		694	{
		695	pciada->pvPhysLcr = pPartialDescriptor->u.Memory.Start;
		696
		697	if (pciada->pvPhysLcr.LowPart & 0x80)
		698	bug = 1;
		699	}
		700	}
		701	else
		702	{
		703	if (i == 3)
		704	pciada->pvPhysLcr = pPartialDescriptor->u.Memory.Start;
		705	}
		706
		707	if (i == 2)
		708	pciada->pvPhysIfr = pPartialDescriptor->u.Memory.Start;
		709
		710	KdPrint(("Memory : 0x%p\n", (PUCHAR)pPartialDescriptor->u.Memory.Start.LowPart));
		711	break;
		712	}
		713	}
		714
		715	if (pciada->Irql == 0)
		716	return STATUS_BIOS_FAILED_TO_CONNECT_INTERRUPT;
		717
		718	KdPrint(("PCICC32ExtractResources() OK.\n"));
		719
		720	return STATUS_SUCCESS;
		721	}
		722
		723	NTSTATUS PCICC32ReserveResources(PDEVICE_OBJECT device_Obj)
		724	{
		725	PCM_RESOURCE_LIST pList = NULL;
		726	NTSTATUS result = STATUS_SUCCESS;
		727	int i;
		728	DEVICE_EXT pDevExt = (DEVICE_EXT)(device_Obj->DeviceExtension);
		729	int nPCIADAs = pDevExt->nPCIADAs;
		730	PCIADA *pciada;
		731	UNICODE_STRING DriverClassName;
		732
		733	KdPrint(("PCICC32ReserveResources()\n"));
		734
		735	// prepare resource claiming
		736	RtlInitUnicodeString(&DriverClassName, L"PCICC32");
		737
		738	// cycle through all busses and slots assigned to PCIADAs
		739	for (i = 0; i < nPCIADAs; i++)
		740	{
		741	pciada = &pDevExt->pciada[i];
		742
		743	result = HalAssignSlotResources(NULL, &DriverClassName, device_Obj->DriverObject, device_Obj,
		744	PCIBus, pciada->Bus, pciada->Slot.u.AsULONG, &pList);
		745
		746	if (result != STATUS_SUCCESS)
		747	break;
		748
		749	result = PCICC32ExtractResources(pciada, pList);
		750
		751	if (result != STATUS_SUCCESS)
		752	break;
		753	}
		754
		755	// its my part to free allocated resources
		756	ExFreePool(pList);
		757
		758	KdPrint(("PCICC32ReserveResources(0x%08x)\n", result));
		759
		760	return result;
		761	};
		762
		763	//------------------------------------------------------------------------
		764	// free resources from PCIADAs
		765	//
		766	NTSTATUS PCICC32FreeResources(PDEVICE_OBJECT device_Obj)
		767	{
		768	CM_RESOURCE_LIST ResList;
		769	BOOLEAN bConflict;
		770	UNICODE_STRING DriverClassName;
		771
		772	KdPrint(("PCICC32FreeResources()\n"));
		773
		774	RtlInitUnicodeString(&DriverClassName, L"PCICC32");
		775
		776	ResList.Count = 0;
		777
		778	IoReportResourceUsage(&DriverClassName, device_Obj->DriverObject,
		779	&ResList, sizeof(ResList), device_Obj,
		780	NULL, 0, FALSE, &bConflict);
		781	return STATUS_SUCCESS;
		782	};
		783
		784
		785	//------------------------------------------------------------------------
		786	// translate memory resources to neutral for PCIADAs
		787	//
		788	NTSTATUS PCICC32TranslateBusAddresses(PDEVICE_OBJECT device_Obj)
		789	{
		790	int i;
		791	NTSTATUS result = STATUS_SUCCESS;
		792	int nPCIADAs = ((DEVICE_EXT*)(device_Obj->DeviceExtension))->nPCIADAs;
		793	ULONG memType0, memType2;
		794	PCIADA *pciada;
		795
		796	KdPrint(("TranslateBusAddresseses()\n"));
		797	for (i = 0; i < nPCIADAs; i++)
		798	{
		799	pciada = &((DEVICE_EXT*)(device_Obj->DeviceExtension))->pciada[i];
		800
		801	memType0 = memType2 = 0;
		802
		803	if (!(HalTranslateBusAddress(PCIBus, pciada->Bus, pciada->pvPhysLcr, &memType0,
		804	&pciada->pvPhysLcr)) \|\|
		805	!(HalTranslateBusAddress(PCIBus, pciada->Bus, pciada->pvPhysIfr, &memType2,
		806	&pciada->pvPhysIfr)))
		807	{
		808	result = STATUS_UNSUCCESSFUL;
		809	break;
		810	}
		811
		812	if ((memType0) \|\| (memType2))
		813	{
		814	result = STATUS_UNSUCCESSFUL;
		815	break;
		816	}
		817	}
		818	return result;
		819	}
		820
		821	//------------------------------------------------------------------------
		822	// map address spaces to virtual addresses
		823	//
		824	NTSTATUS PCICC32MapIOspaces(PDEVICE_OBJECT device_Obj)
		825	{
		826	int i;
		827	DEVICE_EXT pDevExt = (DEVICE_EXT)device_Obj->DeviceExtension;
		828	int nPCIADAs = pDevExt->nPCIADAs;
		829	PCIADA *pciada;
		830
		831	KdPrint(("PCICC32MapIOspaces()\n"));
		832
		833	for (i = 0; i < nPCIADAs; i++)
		834	{
		835	pciada = &pDevExt->pciada[i];
		836
		837	if ((pciada->pvVirtLcr = MmMapIoSpace(pciada->pvPhysLcr, LCR_SPACE, FALSE)) == NULL)
		838	return STATUS_UNSUCCESSFUL;
		839	if ((pciada->pvVirtIfr = MmMapIoSpace(pciada->pvPhysIfr, IFR_SPACE, FALSE)) == NULL)
		840	return STATUS_UNSUCCESSFUL;
		841
		842	KdPrint(("PCIADA %d: LCR 0x%08x IFR 0x%08x\n", i, pciada->pvVirtLcr, pciada->pvVirtIfr));
		843
		844	pciada->pwIntCSR = (PUSHORT)((PUCHAR)pciada->pvVirtLcr + 0x4C);
		845	pciada->pwCntrl = (PUSHORT)((PUCHAR)pciada->pvVirtLcr + 0x50);
		846	}
		847
		848	return STATUS_SUCCESS;
		849	}
		850
		851
		852	//------------------------------------------------------------------------
		853	// initializes and registers a DPC routine for each pciada
		854	//
		855	NTSTATUS InitializeCustomDPCObjects(PDEVICE_OBJECT device_object)
		856	{
		857	int i;
		858	DEVICE_EXT pDevExt = (DEVICE_EXT)(device_object->DeviceExtension);
		859	int nPCIADAs = pDevExt->nPCIADAs;
		860	PCIADA *pciada;
		861
		862	KdPrint(("InitializeCustomDPCObject()\n"));
		863
		864	for (i = 0; i < nPCIADAs; i++)
		865	{
		866	pciada = &pDevExt->pciada[i];
		867	KeInitializeDpc(&pciada->kDPCobj, fMyDefferedRoutine, (PVOID)device_object);
		868	}
		869
		870	return STATUS_SUCCESS;
		871	}
		872
		873	//------------------------------------------------------------------------
		874	// init structures a.s.o.
		875	//
		876	VOID PCICC32SoftInit(PDEVICE_OBJECT device_Obj)
		877	{
		878	int i;
		879	PCIADA *pciada;
		880
		881	for (i = 0; i < PCICC32_MAX_PCIADA; i++)
		882	{
		883	pciada = &((DEVICE_EXT*)(device_Obj->DeviceExtension))->pciada[i];
		884
		885	pciada->pvPhysLcr.QuadPart = pciada->pvPhysIfr.QuadPart = 0;
		886	pciada->pvVirtLcr = pciada->pvVirtIfr = NULL;
		887
		888	pciada->bConnected = FALSE; // connection still not verified
		889	pciada->wModuleNumber = 0xFFFF;
		890	pciada->wFPGAVersion = 0xFFFF;
		891	pciada->wModuleType = 1; // always CC32
		892
		893	pciada->InterruptObject = NULL;
		894	pciada->Irql = 0;
		895	pciada->Vector = 0;
		896	pciada->Affinity = 0;
		897
		898	pciada->dwLinkCount = 0;
		899
		900	pciada->dwIrqStatus = 0;
		901	pciada->pBlockingIrp = (PIRP *)NULL;
		902
		903	pciada->pIrqControlFile = (FILE_OBJ *)NULL;
		904	}
		905
		906	// no CC32 associated to any PCIADA
		907	for (i = 0; i < PCICC32_MAX_CC32; i++)
		908	((DEVICE_EXT*)(device_Obj->DeviceExtension))->cc32[i] = NULL;
		909	}
		910
		911	//------------------------------------------------------------------------
		912	// the ultimate starting point of a driver
		913	NTSTATUS DriverEntry(PDRIVER_OBJECT driverObj, PUNICODE_STRING regPath)
		914	{
		915	int i;
		916	PDEVICE_OBJECT device_object; // pointer to the device object
		917	UNICODE_STRING device_name;
		918	UNICODE_STRING symbol_name;
		919	NTSTATUS result = STATUS_SUCCESS;
		920	PCIADA *pciada; // pointer to a PCIADA
		921	int nPCIADAs; // count of PCIADAs
		922	DEVICE_EXT *DeviceExtension = NULL;
		923	UNREFERENCED_PARAMETER(regPath);
		924	KdPrint(("DriverEntry() ----%d.%d-------------------------\n", (DRIVER_VERSION >> 16) & 0xFFFF, DRIVER_VERSION & 0xFFFF));
		925
		926	driverObj->DriverUnload = PCICC32Unload;
		927	driverObj->MajorFunction[IRP_MJ_CREATE] = PCICC32Open;
		928	driverObj->MajorFunction[IRP_MJ_CLOSE] = PCICC32Close;
		929	driverObj->MajorFunction[IRP_MJ_READ] = PCICC32Read;
		930	driverObj->MajorFunction[IRP_MJ_WRITE] = PCICC32Write;
		931	driverObj->MajorFunction[IRP_MJ_DEVICE_CONTROL] = PCICC32DeviceControl;
		932	driverObj->MajorFunction[IRP_MJ_SHUTDOWN] = PCICC32Shutdown;
		933
		934	RtlInitUnicodeString(&device_name, L"\\Device\\CC32");
		935
		936	/* DeviceObject durch IO-Manager erzeugen */
		937	result = IoCreateDevice( driverObj, // DriverObject received by the DriverEntry Call
		938	sizeof(DEVICE_EXT), // required Memory for the DeviceExtension
		939	&device_name, // Name of the device in the device-Directory
		940	FILE_DEVICE_UNKNOWN, // Device-ID
		941	0, // Device-Characteristics normal 0
		942	FALSE, // TRUE : one Thread can open the driver
		943	&device_object); // DeviceObject returned from the IO-Manager
		944
		945	// defines how the data are handled between user / kernel Adress-Space
		946	device_object->Flags \|= DO_DIRECT_IO;
		947
		948	// anounce driver as symbolic device ---------------------------------
		949	if (result == STATUS_SUCCESS)
		950	{
		951	/* now the symbolic Link is created. If there is no S.L. a program cannot connect to the driver */
		952	RtlInitUnicodeString(&symbol_name, DOS_DEVICE_NAME);
		953	result = IoCreateSymbolicLink(&symbol_name,&device_name);
		954	if (result != STATUS_SUCCESS)
		955	{
		956	IoDeleteDevice(device_object);
		957	return result;
		958	}
		959	}
		960	else
		961	return result;
		962
		963	DeviceExtension = (DEVICE_EXT*)device_object->DeviceExtension;
		964
		965	DeviceExtension->actualIrp = NULL;
		966	DeviceExtension->nInitState = 0;
		967
		968	// init pciada structures ------------------------------------
		969	PCICC32SoftInit(device_object);
		970
		971	// search for PCIADAs ----------------------------------------
		972	result = SearchDevices(device_object);
		973	nPCIADAs = DeviceExtension->nPCIADAs;
		974
		975	if ((result != STATUS_SUCCESS) \|\| !(nPCIADAs))
		976	{
		977	PCICC32Unload(driverObj);
		978	return STATUS_DEVICE_DOES_NOT_EXIST;
		979	}
		980
		981	// request exclusive ownership of .. ---------------------------------
		982	if ((result = PCICC32ReserveResources(device_object)) != STATUS_SUCCESS)
		983	{
		984	PCICC32Unload(driverObj);
		985	return result;
		986	}
		987	else
		988	DeviceExtension->nInitState++;
		989
		990	// fix PLX9050 Bug -------------------------------------------
		991	if ((result = PLX9050BugFix(device_object)) != STATUS_SUCCESS)
		992	{
		993	PCICC32Unload(driverObj);
		994	return result;
		995	}
		996
		997	// translate BUS relative addresses ----------------------------------
		998	if ((result = PCICC32TranslateBusAddresses(device_object)) != STATUS_SUCCESS)
		999	{
		1000	PCICC32Unload(driverObj);
		1001	return STATUS_DEVICE_DOES_NOT_EXIST;
		1002	}
		1003	else
		1004	DeviceExtension->nInitState++;
		1005
		1006	// translate Interrupt Resources used --------------------------------
		1007	if ((result = PCICC32TranslateInterrupt(device_object)) != STATUS_SUCCESS)
		1008	{
		1009	PCICC32Unload(driverObj);
		1010	return STATUS_DEVICE_DOES_NOT_EXIST;
		1011	}
		1012	else
		1013	DeviceExtension->nInitState++;
		1014
		1015	// map address spaces to virtual addresses ---------------------------
		1016	if ((result = PCICC32MapIOspaces(device_object)) != STATUS_SUCCESS)
		1017	{
		1018	PCICC32Unload(driverObj);
		1019	return STATUS_DEVICE_DOES_NOT_EXIST;
		1020	}
		1021	else
		1022	DeviceExtension->nInitState++;
		1023
		1024	// initialze my custom DPC objects -----------------------------------
		1025	if ((result = InitializeCustomDPCObjects(device_object)) != STATUS_SUCCESS)
		1026	{
		1027	PCICC32Unload(driverObj);
		1028	return result;
		1029	}
		1030	else
		1031	DeviceExtension->nInitState++;
		1032
		1033	// disable all interrupts --------------------------------------------
		1034	for (i = 0; i < nPCIADAs; i++)
		1035	{
		1036	pciada = &DeviceExtension->pciada[i];
		1037
		1038	globalInterruptDisable(pciada);
		1039	}
		1040
		1041	// connect interrupts to service routines ----------------------------
		1042	if ((result = PCICC32ConnectInterrupt(device_object)) != STATUS_SUCCESS)
		1043	{
		1044	PCICC32Unload(driverObj);
		1045	return STATUS_DEVICE_DOES_NOT_EXIST;
		1046	}
		1047	else
		1048	DeviceExtension->nInitState++;
		1049
		1050	// scan all connected CC32 for info and later use -------------------
		1051	if ((result = PCICC32ScanCC32(device_object)) != STATUS_SUCCESS)
		1052	{
		1053	PCICC32Unload(driverObj);
		1054	return STATUS_DEVICE_DOES_NOT_EXIST;
		1055	}
		1056
		1057	device_object->Flags &= ~DO_DEVICE_INITIALIZING;
		1058
		1059	KdPrint(("DriverEntry() OK.\n"));
		1060
		1061	return result;
		1062	}
		1063

Subversion Repositories f9daq

(root)//drivers/wiener_pcicc32/pcicc32/pcicc32/pcicc32_drv.c – Rev 176