2 * PROJECT: ReactOS Kernel
3 * LICENSE: BSD - See COPYING.ARM in the top level directory
4 * FILE: ntoskrnl/io/pnpmgr/pnpinit.c
5 * PURPOSE: PnP Initialization Code
6 * PROGRAMMERS: ReactOS Portable Systems Group
9 /* INCLUDES *******************************************************************/
15 /* GLOBALS ********************************************************************/
17 typedef struct _IOPNP_DEVICE_EXTENSION
19 PWCHAR CompatibleIdList
;
20 ULONG CompatibleIdListSize
;
21 } IOPNP_DEVICE_EXTENSION
, *PIOPNP_DEVICE_EXTENSION
;
23 PUNICODE_STRING PiInitGroupOrderTable
;
24 USHORT PiInitGroupOrderTableCount
;
25 INTERFACE_TYPE PnpDefaultInterfaceType
;
27 /* FUNCTIONS ******************************************************************/
31 IopDetermineDefaultInterfaceType(VOID
)
33 /* FIXME: ReactOS doesn't support MicroChannel yet */
39 IopInitializeArbiters(VOID
)
42 return STATUS_SUCCESS
;
48 PiInitCacheGroupInformation(VOID
)
52 PKEY_VALUE_FULL_INFORMATION KeyValueInformation
;
53 PUNICODE_STRING GroupTable
;
55 UNICODE_STRING GroupString
=
56 RTL_CONSTANT_STRING(L
"\\Registry\\Machine\\System\\CurrentControlSet"
57 L
"\\Control\\ServiceGroupOrder");
59 /* ReactOS HACK for SETUPLDR */
60 if (KeLoaderBlock
->SetupLdrBlock
)
62 DPRINT1("WARNING!! In PiInitCacheGroupInformation, using ReactOS HACK for SETUPLDR!!\n");
65 PiInitGroupOrderTableCount
= 0;
66 PiInitGroupOrderTable
= (PVOID
)0xBABEB00B;
67 return STATUS_SUCCESS
;
70 /* Open the registry key */
71 Status
= IopOpenRegistryKeyEx(&KeyHandle
,
75 if (NT_SUCCESS(Status
))
78 Status
= IopGetRegistryValue(KeyHandle
, L
"List", &KeyValueInformation
);
81 /* Make sure we got it */
82 if (NT_SUCCESS(Status
))
84 /* Make sure it's valid */
85 if ((KeyValueInformation
->Type
== REG_MULTI_SZ
) &&
86 (KeyValueInformation
->DataLength
))
88 /* Convert it to unicode strings */
89 Status
= PnpRegMultiSzToUnicodeStrings(KeyValueInformation
,
93 /* Cache it for later */
94 PiInitGroupOrderTable
= GroupTable
;
95 PiInitGroupOrderTableCount
= (USHORT
)Count
;
100 Status
= STATUS_UNSUCCESSFUL
;
103 /* Free the information */
104 ExFreePool(KeyValueInformation
);
114 PpInitGetGroupOrderIndex(IN HANDLE ServiceHandle
)
117 PKEY_VALUE_FULL_INFORMATION KeyValueInformation
;
120 UNICODE_STRING Group
;
123 /* Make sure we have a cache */
124 if (!PiInitGroupOrderTable
) return -1;
126 /* If we don't have a handle, the rest is easy -- return the count */
127 if (!ServiceHandle
) return PiInitGroupOrderTableCount
+ 1;
129 /* Otherwise, get the group value */
130 Status
= IopGetRegistryValue(ServiceHandle
, L
"Group", &KeyValueInformation
);
131 if (!NT_SUCCESS(Status
)) return PiInitGroupOrderTableCount
;
133 /* Make sure we have a valid string */
134 ASSERT(KeyValueInformation
->Type
== REG_SZ
);
135 ASSERT(KeyValueInformation
->DataLength
);
137 /* Convert to unicode string */
138 Buffer
= (PVOID
)((ULONG_PTR
)KeyValueInformation
+ KeyValueInformation
->DataOffset
);
139 PnpRegSzToString(Buffer
, KeyValueInformation
->DataLength
, &Group
.Length
);
140 Group
.MaximumLength
= (USHORT
)KeyValueInformation
->DataLength
;
141 Group
.Buffer
= Buffer
;
143 /* Loop the groups */
144 for (i
= 0; i
< PiInitGroupOrderTableCount
; i
++)
146 /* Try to find a match */
147 if (RtlEqualUnicodeString(&Group
, &PiInitGroupOrderTable
[i
], TRUE
)) break;
151 ExFreePool(KeyValueInformation
);
157 PipGetDriverTagPriority(IN HANDLE ServiceHandle
)
160 HANDLE KeyHandle
= NULL
;
161 PKEY_VALUE_FULL_INFORMATION KeyValueInformation
= NULL
;
162 PKEY_VALUE_FULL_INFORMATION KeyValueInformationTag
;
163 PKEY_VALUE_FULL_INFORMATION KeyValueInformationGroupOrderList
;
165 UNICODE_STRING Group
;
167 ULONG Count
, Tag
= 0;
169 UNICODE_STRING GroupString
=
170 RTL_CONSTANT_STRING(L
"\\Registry\\Machine\\System\\CurrentControlSet"
171 L
"\\Control\\ServiceGroupOrder");
174 Status
= IopOpenRegistryKeyEx(&KeyHandle
, NULL
, &GroupString
, KEY_READ
);
175 if (!NT_SUCCESS(Status
)) goto Quickie
;
178 Status
= IopGetRegistryValue(ServiceHandle
, L
"Group", &KeyValueInformation
);
179 if (!NT_SUCCESS(Status
)) goto Quickie
;
181 /* Make sure we have a group */
182 if ((KeyValueInformation
->Type
== REG_SZ
) &&
183 (KeyValueInformation
->DataLength
))
185 /* Convert to unicode string */
186 Buffer
= (PVOID
)((ULONG_PTR
)KeyValueInformation
+ KeyValueInformation
->DataOffset
);
187 PnpRegSzToString(Buffer
, KeyValueInformation
->DataLength
, &Group
.Length
);
188 Group
.MaximumLength
= (USHORT
)KeyValueInformation
->DataLength
;
189 Group
.Buffer
= Buffer
;
192 /* Now read the tag */
193 Status
= IopGetRegistryValue(ServiceHandle
, L
"Tag", &KeyValueInformationTag
);
194 if (!NT_SUCCESS(Status
)) goto Quickie
;
196 /* Make sure we have a tag */
197 if ((KeyValueInformationTag
->Type
== REG_DWORD
) &&
198 (KeyValueInformationTag
->DataLength
))
201 Tag
= *(PULONG
)((ULONG_PTR
)KeyValueInformationTag
+
202 KeyValueInformationTag
->DataOffset
);
205 /* We can get rid of this now */
206 ExFreePool(KeyValueInformationTag
);
208 /* Now let's read the group's tag order */
209 Status
= IopGetRegistryValue(KeyHandle
,
211 &KeyValueInformationGroupOrderList
);
213 /* We can get rid of this now */
215 if (KeyValueInformation
) ExFreePool(KeyValueInformation
);
216 if (KeyHandle
) NtClose(KeyHandle
);
217 if (!NT_SUCCESS(Status
)) return -1;
219 /* We're on the success path -- validate the tag order*/
220 if ((KeyValueInformationGroupOrderList
->Type
== REG_BINARY
) &&
221 (KeyValueInformationGroupOrderList
->DataLength
))
223 /* Get the order array */
224 GroupOrder
= (PULONG
)((ULONG_PTR
)KeyValueInformationGroupOrderList
+
225 KeyValueInformationGroupOrderList
->DataOffset
);
229 ASSERT(((Count
+ 1) * sizeof(ULONG
)) <=
230 KeyValueInformationGroupOrderList
->DataLength
);
232 /* Now loop each tag */
234 for (i
= 1; i
<= Count
; i
++)
236 /* If we found it, we're out */
237 if (Tag
== *GroupOrder
) break;
239 /* Try the next one */
244 /* Last buffer to free */
245 ExFreePool(KeyValueInformationGroupOrderList
);
251 PipCallDriverAddDevice(IN PDEVICE_NODE DeviceNode
,
252 IN BOOLEAN LoadDriver
,
253 IN PDRIVER_OBJECT DriverObject
)
256 HANDLE EnumRootKey
, SubKey
, ControlKey
, ClassKey
, PropertiesKey
;
257 UNICODE_STRING ClassGuid
, Properties
;
258 UNICODE_STRING EnumRoot
= RTL_CONSTANT_STRING(ENUM_ROOT
);
259 UNICODE_STRING ControlClass
=
260 RTL_CONSTANT_STRING(L
"\\Registry\\Machine\\System\\CurrentControlSet\\Control\\Class");
261 PKEY_VALUE_FULL_INFORMATION KeyValueInformation
= NULL
;
264 /* Open enumeration root key */
265 Status
= IopOpenRegistryKeyEx(&EnumRootKey
,
269 if (!NT_SUCCESS(Status
))
271 DPRINT1("IopOpenRegistryKeyEx() failed with Status %08X\n", Status
);
275 /* Open instance subkey */
276 Status
= IopOpenRegistryKeyEx(&SubKey
,
278 &DeviceNode
->InstancePath
,
280 ZwClose(EnumRootKey
);
281 if (!NT_SUCCESS(Status
))
283 DPRINT1("IopOpenRegistryKeyEx() failed with Status %08X\n", Status
);
288 Status
= IopGetRegistryValue(SubKey
,
289 REGSTR_VAL_CLASSGUID
,
290 &KeyValueInformation
);
291 if (NT_SUCCESS(Status
))
293 /* Convert to unicode string */
294 Buffer
= (PVOID
)((ULONG_PTR
)KeyValueInformation
+ KeyValueInformation
->DataOffset
);
295 PnpRegSzToString(Buffer
, KeyValueInformation
->DataLength
, &ClassGuid
.Length
);
296 ClassGuid
.MaximumLength
= (USHORT
)KeyValueInformation
->DataLength
;
297 ClassGuid
.Buffer
= Buffer
;
300 Status
= IopOpenRegistryKeyEx(&ControlKey
,
304 if (!NT_SUCCESS(Status
))
307 DPRINT1("IopOpenRegistryKeyEx() failed with Status %08X\n", Status
);
312 /* Open the class key */
313 Status
= IopOpenRegistryKeyEx(&ClassKey
,
318 if (!NT_SUCCESS(Status
))
321 DPRINT1("IopOpenRegistryKeyEx() failed with Status %08X\n", Status
);
326 /* Check if we made it till here */
329 /* Get the device properties */
330 RtlInitUnicodeString(&Properties
, REGSTR_KEY_DEVICE_PROPERTIES
);
331 Status
= IopOpenRegistryKeyEx(&PropertiesKey
,
336 if (!NT_SUCCESS(Status
))
339 DPRINT("IopOpenRegistryKeyEx() failed with Status %08X\n", Status
);
340 PropertiesKey
= NULL
;
344 ZwClose(PropertiesKey
);
348 /* Free the registry data */
349 ExFreePool(KeyValueInformation
);
352 /* Do ReactOS-style setup */
353 Status
= IopAttachFilterDrivers(DeviceNode
, TRUE
);
354 if (!NT_SUCCESS(Status
))
356 IopRemoveDevice(DeviceNode
);
359 Status
= IopInitializeDevice(DeviceNode
, DriverObject
);
360 if (NT_SUCCESS(Status
))
362 Status
= IopAttachFilterDrivers(DeviceNode
, FALSE
);
363 if (!NT_SUCCESS(Status
))
365 IopRemoveDevice(DeviceNode
);
369 Status
= IopStartDevice(DeviceNode
);
379 IopInitializePlugPlayServices(VOID
)
383 HANDLE KeyHandle
, EnumHandle
, ParentHandle
, TreeHandle
, ControlHandle
;
384 UNICODE_STRING KeyName
= RTL_CONSTANT_STRING(L
"\\REGISTRY\\MACHINE\\SYSTEM\\CURRENTCONTROLSET");
385 UNICODE_STRING PnpManagerDriverName
= RTL_CONSTANT_STRING(DRIVER_ROOT_NAME L
"PnpManager");
388 /* Initialize locks and such */
389 KeInitializeSpinLock(&IopDeviceTreeLock
);
390 KeInitializeSpinLock(&IopDeviceRelationsSpinLock
);
391 InitializeListHead(&IopDeviceRelationsRequestList
);
393 /* Get the default interface */
394 PnpDefaultInterfaceType
= IopDetermineDefaultInterfaceType();
396 /* Initialize arbiters */
397 Status
= IopInitializeArbiters();
398 if (!NT_SUCCESS(Status
)) return Status
;
400 /* Setup the group cache */
401 Status
= PiInitCacheGroupInformation();
402 if (!NT_SUCCESS(Status
)) return Status
;
404 /* Open the current control set */
405 Status
= IopOpenRegistryKeyEx(&KeyHandle
,
409 if (!NT_SUCCESS(Status
)) return Status
;
411 /* Create the control key */
412 RtlInitUnicodeString(&KeyName
, L
"Control");
413 Status
= IopCreateRegistryKeyEx(&ControlHandle
,
417 REG_OPTION_NON_VOLATILE
,
419 if (!NT_SUCCESS(Status
)) return Status
;
421 /* Check if it's a new key */
422 if (Disposition
== REG_CREATED_NEW_KEY
)
424 HANDLE DeviceClassesHandle
;
426 /* Create the device classes key */
427 RtlInitUnicodeString(&KeyName
, L
"DeviceClasses");
428 Status
= IopCreateRegistryKeyEx(&DeviceClassesHandle
,
432 REG_OPTION_NON_VOLATILE
,
434 if (!NT_SUCCESS(Status
)) return Status
;
436 ZwClose(DeviceClassesHandle
);
439 ZwClose(ControlHandle
);
441 /* Create the enum key */
442 RtlInitUnicodeString(&KeyName
, REGSTR_KEY_ENUM
);
443 Status
= IopCreateRegistryKeyEx(&EnumHandle
,
447 REG_OPTION_NON_VOLATILE
,
449 if (!NT_SUCCESS(Status
)) return Status
;
451 /* Check if it's a new key */
452 if (Disposition
== REG_CREATED_NEW_KEY
)
455 DPRINT1("Need to build DACL\n");
458 /* Create the root key */
459 ParentHandle
= EnumHandle
;
460 RtlInitUnicodeString(&KeyName
, REGSTR_KEY_ROOTENUM
);
461 Status
= IopCreateRegistryKeyEx(&EnumHandle
,
465 REG_OPTION_NON_VOLATILE
,
467 NtClose(ParentHandle
);
468 if (!NT_SUCCESS(Status
)) return Status
;
471 /* Open the root key now */
472 RtlInitUnicodeString(&KeyName
, L
"\\REGISTRY\\MACHINE\\SYSTEM\\CURRENTCONTROLSET\\ENUM");
473 Status
= IopOpenRegistryKeyEx(&EnumHandle
,
477 if (NT_SUCCESS(Status
))
479 /* Create the root dev node */
480 RtlInitUnicodeString(&KeyName
, REGSTR_VAL_ROOT_DEVNODE
);
481 Status
= IopCreateRegistryKeyEx(&TreeHandle
,
485 REG_OPTION_NON_VOLATILE
,
488 if (NT_SUCCESS(Status
)) NtClose(TreeHandle
);
491 /* Create the root driver */
492 Status
= IoCreateDriver(&PnpManagerDriverName
, PnpRootDriverEntry
);
493 if (!NT_SUCCESS(Status
))
495 DPRINT1("IoCreateDriverObject() failed\n");
496 KeBugCheckEx(PHASE1_INITIALIZATION_FAILED
, Status
, 0, 0, 0);
499 /* Create the root PDO */
500 Status
= IoCreateDevice(IopRootDriverObject
,
501 sizeof(IOPNP_DEVICE_EXTENSION
),
503 FILE_DEVICE_CONTROLLER
,
507 if (!NT_SUCCESS(Status
))
509 DPRINT1("IoCreateDevice() failed\n");
510 KeBugCheckEx(PHASE1_INITIALIZATION_FAILED
, Status
, 0, 0, 0);
513 /* This is a bus enumerated device */
514 Pdo
->Flags
|= DO_BUS_ENUMERATED_DEVICE
;
516 /* Create the root device node */
517 IopRootDeviceNode
= PipAllocateDeviceNode(Pdo
);
520 IopRootDeviceNode
->Flags
|= DNF_STARTED
+ DNF_PROCESSED
+ DNF_ENUMERATED
+
521 DNF_MADEUP
+ DNF_NO_RESOURCE_REQUIRED
+
524 /* Create instance path */
525 RtlCreateUnicodeString(&IopRootDeviceNode
->InstancePath
,
526 REGSTR_VAL_ROOT_DEVNODE
);
528 /* Call the add device routine */
529 IopRootDriverObject
->DriverExtension
->AddDevice(IopRootDriverObject
,
530 IopRootDeviceNode
->PhysicalDeviceObject
);
532 /* Initialize PnP-Event notification support */
533 Status
= IopInitPlugPlayEvents();
534 if (!NT_SUCCESS(Status
)) return Status
;
536 /* Report the device to the user-mode pnp manager */
537 IopQueueTargetDeviceEvent(&GUID_DEVICE_ARRIVAL
,
538 &IopRootDeviceNode
->InstancePath
);
540 /* Initialize the Bus Type GUID List */
541 PnpBusTypeGuidList
= ExAllocatePool(PagedPool
, sizeof(IO_BUS_TYPE_GUID_LIST
));
542 RtlZeroMemory(PnpBusTypeGuidList
, sizeof(IO_BUS_TYPE_GUID_LIST
));
543 ExInitializeFastMutex(&PnpBusTypeGuidList
->Lock
);
545 /* Launch the firmware mapper */
546 Status
= IopUpdateRootKey();
547 if (!NT_SUCCESS(Status
)) return Status
;
549 /* Close the handle to the control set */
553 return STATUS_SUCCESS
;