9 #include <acpi_drivers.h>
18 #pragma alloc_text (PAGE, Bus_PDO_PnP)
19 #pragma alloc_text (PAGE, Bus_PDO_QueryDeviceCaps)
20 #pragma alloc_text (PAGE, Bus_PDO_QueryDeviceId)
21 #pragma alloc_text (PAGE, Bus_PDO_QueryDeviceText)
22 #pragma alloc_text (PAGE, Bus_PDO_QueryResources)
23 #pragma alloc_text (PAGE, Bus_PDO_QueryResourceRequirements)
24 #pragma alloc_text (PAGE, Bus_PDO_QueryDeviceRelations)
25 #pragma alloc_text (PAGE, Bus_PDO_QueryBusInformation)
26 #pragma alloc_text (PAGE, Bus_GetDeviceCapabilities)
31 PDEVICE_OBJECT DeviceObject
,
33 PIO_STACK_LOCATION IrpStack
,
34 PPDO_DEVICE_DATA DeviceData
39 struct acpi_device
*device
= NULL
;
43 if (DeviceData
->AcpiHandle
)
44 acpi_bus_get_device(DeviceData
->AcpiHandle
, &device
);
47 // NB: Because we are a bus enumerator, we have no one to whom we could
48 // defer these irps. Therefore we do not pass them down but merely
52 switch (IrpStack
->MinorFunction
) {
54 case IRP_MN_START_DEVICE
:
56 // Here we do what ever initialization and ``turning on'' that is
57 // required to allow others to access this device.
58 // Power up the device.
60 if (DeviceData
->AcpiHandle
&& acpi_bus_power_manageable(DeviceData
->AcpiHandle
) &&
61 !ACPI_SUCCESS(acpi_bus_set_power(DeviceData
->AcpiHandle
, ACPI_STATE_D0
)))
63 DPRINT1("Device %x failed to start!\n", DeviceData
->AcpiHandle
);
64 status
= STATUS_UNSUCCESSFUL
;
68 DeviceData
->InterfaceName
.Length
= 0;
69 status
= STATUS_SUCCESS
;
73 status
= IoRegisterDeviceInterface(DeviceData
->Common
.Self
,
74 &GUID_DEVICE_SYS_BUTTON
,
76 &DeviceData
->InterfaceName
);
78 else if (device
->flags
.hardware_id
&&
79 strstr(device
->pnp
.hardware_id
, ACPI_THERMAL_HID
))
81 status
= IoRegisterDeviceInterface(DeviceData
->Common
.Self
,
82 &GUID_DEVICE_THERMAL_ZONE
,
84 &DeviceData
->InterfaceName
);
86 else if (device
->flags
.hardware_id
&&
87 strstr(device
->pnp
.hardware_id
, ACPI_BUTTON_HID_LID
))
89 status
= IoRegisterDeviceInterface(DeviceData
->Common
.Self
,
92 &DeviceData
->InterfaceName
);
94 else if (device
->flags
.hardware_id
&&
95 strstr(device
->pnp
.hardware_id
, ACPI_PROCESSOR_HID
))
97 status
= IoRegisterDeviceInterface(DeviceData
->Common
.Self
,
98 &GUID_DEVICE_PROCESSOR
,
100 &DeviceData
->InterfaceName
);
103 /* Failure to register an interface is not a fatal failure so don't return a failure status */
104 if (NT_SUCCESS(status
) && DeviceData
->InterfaceName
.Length
!= 0)
105 IoSetDeviceInterfaceState(&DeviceData
->InterfaceName
, TRUE
);
107 state
.DeviceState
= PowerDeviceD0
;
108 PoSetPowerState(DeviceData
->Common
.Self
, DevicePowerState
, state
);
109 DeviceData
->Common
.DevicePowerState
= PowerDeviceD0
;
110 SET_NEW_PNP_STATE(DeviceData
->Common
, Started
);
111 status
= STATUS_SUCCESS
;
114 case IRP_MN_STOP_DEVICE
:
116 if (DeviceData
->InterfaceName
.Length
!= 0)
117 IoSetDeviceInterfaceState(&DeviceData
->InterfaceName
, FALSE
);
120 // Here we shut down the device and give up and unmap any resources
121 // we acquired for the device.
123 if (DeviceData
->AcpiHandle
&& acpi_bus_power_manageable(DeviceData
->AcpiHandle
) &&
124 !ACPI_SUCCESS(acpi_bus_set_power(DeviceData
->AcpiHandle
, ACPI_STATE_D3
)))
126 DPRINT1("Device %x failed to stop!\n", DeviceData
->AcpiHandle
);
127 status
= STATUS_UNSUCCESSFUL
;
131 state
.DeviceState
= PowerDeviceD3
;
132 PoSetPowerState(DeviceData
->Common
.Self
, DevicePowerState
, state
);
133 DeviceData
->Common
.DevicePowerState
= PowerDeviceD3
;
134 SET_NEW_PNP_STATE(DeviceData
->Common
, Stopped
);
135 status
= STATUS_SUCCESS
;
139 case IRP_MN_QUERY_STOP_DEVICE
:
142 // No reason here why we can't stop the device.
143 // If there were a reason we should speak now, because answering success
144 // here may result in a stop device irp.
147 SET_NEW_PNP_STATE(DeviceData
->Common
, StopPending
);
148 status
= STATUS_SUCCESS
;
151 case IRP_MN_CANCEL_STOP_DEVICE
:
154 // The stop was canceled. Whatever state we set, or resources we put
155 // on hold in anticipation of the forthcoming STOP device IRP should be
156 // put back to normal. Someone, in the long list of concerned parties,
157 // has failed the stop device query.
161 // First check to see whether you have received cancel-stop
162 // without first receiving a query-stop. This could happen if someone
163 // above us fails a query-stop and passes down the subsequent
167 if (StopPending
== DeviceData
->Common
.DevicePnPState
)
170 // We did receive a query-stop, so restore.
172 RESTORE_PREVIOUS_PNP_STATE(DeviceData
->Common
);
174 status
= STATUS_SUCCESS
;// We must not fail this IRP.
176 case IRP_MN_QUERY_CAPABILITIES
:
179 // Return the capabilities of a device, such as whether the device
180 // can be locked or ejected..etc
183 status
= Bus_PDO_QueryDeviceCaps(DeviceData
, Irp
);
187 case IRP_MN_QUERY_ID
:
189 // Query the IDs of the device
190 status
= Bus_PDO_QueryDeviceId(DeviceData
, Irp
);
194 case IRP_MN_QUERY_DEVICE_RELATIONS
:
196 DPRINT("\tQueryDeviceRelation Type: %s\n",DbgDeviceRelationString(\
197 IrpStack
->Parameters
.QueryDeviceRelations
.Type
));
199 status
= Bus_PDO_QueryDeviceRelations(DeviceData
, Irp
);
203 case IRP_MN_QUERY_DEVICE_TEXT
:
205 status
= Bus_PDO_QueryDeviceText(DeviceData
, Irp
);
209 case IRP_MN_QUERY_RESOURCES
:
211 status
= Bus_PDO_QueryResources(DeviceData
, Irp
);
215 case IRP_MN_QUERY_RESOURCE_REQUIREMENTS
:
217 status
= Bus_PDO_QueryResourceRequirements(DeviceData
, Irp
);
221 case IRP_MN_QUERY_BUS_INFORMATION
:
223 status
= Bus_PDO_QueryBusInformation(DeviceData
, Irp
);
227 case IRP_MN_QUERY_INTERFACE
:
229 status
= Bus_PDO_QueryInterface(DeviceData
, Irp
);
234 case IRP_MN_FILTER_RESOURCE_REQUIREMENTS
:
237 // OPTIONAL for bus drivers.
238 // The PnP Manager sends this IRP to a device
239 // stack so filter and function drivers can adjust the
240 // resources required by the device, if appropriate.
245 //case IRP_MN_QUERY_PNP_DEVICE_STATE:
248 // OPTIONAL for bus drivers.
249 // The PnP Manager sends this IRP after the drivers for
250 // a device return success from the IRP_MN_START_DEVICE
251 // request. The PnP Manager also sends this IRP when a
252 // driver for the device calls IoInvalidateDeviceState.
257 //case IRP_MN_READ_CONFIG:
258 //case IRP_MN_WRITE_CONFIG:
261 // Bus drivers for buses with configuration space must handle
262 // this request for their child devices. Our devices don't
263 // have a config space.
268 //case IRP_MN_SET_LOCK:
275 // For PnP requests to the PDO that we do not understand we should
276 // return the IRP WITHOUT setting the status or information fields.
277 // These fields may have already been set by a filter (eg acpi).
278 status
= Irp
->IoStatus
.Status
;
283 Irp
->IoStatus
.Status
= status
;
284 IoCompleteRequest (Irp
, IO_NO_INCREMENT
);
290 Bus_PDO_QueryDeviceCaps(
291 PPDO_DEVICE_DATA DeviceData
,
295 PIO_STACK_LOCATION stack
;
296 PDEVICE_CAPABILITIES deviceCapabilities
;
297 struct acpi_device
*device
= NULL
;
302 if (DeviceData
->AcpiHandle
)
303 acpi_bus_get_device(DeviceData
->AcpiHandle
, &device
);
305 stack
= IoGetCurrentIrpStackLocation (Irp
);
310 deviceCapabilities
=stack
->Parameters
.DeviceCapabilities
.Capabilities
;
313 // Set the capabilities.
316 if (deviceCapabilities
->Version
!= 1 ||
317 deviceCapabilities
->Size
< sizeof(DEVICE_CAPABILITIES
))
319 return STATUS_UNSUCCESSFUL
;
322 deviceCapabilities
->D1Latency
= 0;
323 deviceCapabilities
->D2Latency
= 0;
324 deviceCapabilities
->D3Latency
= 0;
326 deviceCapabilities
->DeviceState
[PowerSystemWorking
] = PowerDeviceD0
;
327 deviceCapabilities
->DeviceState
[PowerSystemSleeping1
] = PowerDeviceD3
;
328 deviceCapabilities
->DeviceState
[PowerSystemSleeping2
] = PowerDeviceD3
;
329 deviceCapabilities
->DeviceState
[PowerSystemSleeping3
] = PowerDeviceD3
;
331 for (i
= 0; i
< ACPI_D_STATE_COUNT
&& device
; i
++)
333 if (!device
->power
.states
[i
].flags
.valid
)
339 deviceCapabilities
->DeviceState
[PowerSystemWorking
] = PowerDeviceD0
;
343 deviceCapabilities
->DeviceState
[PowerSystemSleeping1
] = PowerDeviceD1
;
344 deviceCapabilities
->D1Latency
= device
->power
.states
[i
].latency
;
348 deviceCapabilities
->DeviceState
[PowerSystemSleeping2
] = PowerDeviceD2
;
349 deviceCapabilities
->D2Latency
= device
->power
.states
[i
].latency
;
353 deviceCapabilities
->DeviceState
[PowerSystemSleeping3
] = PowerDeviceD3
;
354 deviceCapabilities
->D3Latency
= device
->power
.states
[i
].latency
;
359 // We can wake the system from D1
360 deviceCapabilities
->DeviceWake
= PowerDeviceD1
;
363 deviceCapabilities
->DeviceD1
=
364 (deviceCapabilities
->DeviceState
[PowerSystemSleeping1
] == PowerDeviceD1
) ? TRUE
: FALSE
;
365 deviceCapabilities
->DeviceD2
=
366 (deviceCapabilities
->DeviceState
[PowerSystemSleeping2
] == PowerDeviceD2
) ? TRUE
: FALSE
;
368 deviceCapabilities
->WakeFromD0
= FALSE
;
369 deviceCapabilities
->WakeFromD1
= TRUE
; //Yes we can
370 deviceCapabilities
->WakeFromD2
= FALSE
;
371 deviceCapabilities
->WakeFromD3
= FALSE
;
375 deviceCapabilities
->LockSupported
= device
->flags
.lockable
;
376 deviceCapabilities
->EjectSupported
= device
->flags
.ejectable
;
377 deviceCapabilities
->HardwareDisabled
= !device
->status
.enabled
&& !device
->status
.functional
;
378 deviceCapabilities
->Removable
= device
->flags
.removable
;
379 deviceCapabilities
->SurpriseRemovalOK
= device
->flags
.suprise_removal_ok
;
380 deviceCapabilities
->UniqueID
= device
->flags
.unique_id
;
381 deviceCapabilities
->NoDisplayInUI
= !device
->status
.show_in_ui
;
382 deviceCapabilities
->Address
= device
->pnp
.bus_address
;
386 (device
->flags
.hardware_id
&&
387 (strstr(device
->pnp
.hardware_id
, ACPI_BUTTON_HID_LID
) ||
388 strstr(device
->pnp
.hardware_id
, ACPI_THERMAL_HID
) ||
389 strstr(device
->pnp
.hardware_id
, ACPI_PROCESSOR_HID
))))
391 /* Allow ACPI to control the device if it is a lid button,
392 * a thermal zone, a processor, or a fixed feature button */
393 deviceCapabilities
->RawDeviceOK
= TRUE
;
396 deviceCapabilities
->SilentInstall
= FALSE
;
397 deviceCapabilities
->UINumber
= (ULONG
)-1;
399 return STATUS_SUCCESS
;
404 Bus_PDO_QueryDeviceId(
405 PPDO_DEVICE_DATA DeviceData
,
408 PIO_STACK_LOCATION stack
;
412 NTSTATUS status
= STATUS_SUCCESS
;
413 struct acpi_device
*Device
;
417 stack
= IoGetCurrentIrpStackLocation (Irp
);
419 switch (stack
->Parameters
.QueryId
.IdType
) {
421 case BusQueryDeviceID
:
422 if (DeviceData
->AcpiHandle
)
424 acpi_bus_get_device(DeviceData
->AcpiHandle
, &Device
);
426 length
= swprintf(temp
,
428 Device
->pnp
.hardware_id
);
432 /* We know it's a fixed feature button because
433 * these are direct children of the ACPI root device
434 * and therefore have no handle
436 length
= swprintf(temp
,
437 L
"ACPI\\FixedButton");
440 temp
[++length
] = UNICODE_NULL
;
442 buffer
= ExAllocatePoolWithTag (PagedPool
, length
* sizeof(WCHAR
), 'IPCA');
445 status
= STATUS_INSUFFICIENT_RESOURCES
;
449 RtlCopyMemory (buffer
, temp
, length
* sizeof(WCHAR
));
450 Irp
->IoStatus
.Information
= (ULONG_PTR
) buffer
;
451 DPRINT("BusQueryDeviceID: %ls\n",buffer
);
454 case BusQueryInstanceID
:
455 /* See comment in BusQueryDeviceID case */
456 if(DeviceData
->AcpiHandle
)
458 acpi_bus_get_device(DeviceData
->AcpiHandle
, &Device
);
460 if (Device
->flags
.unique_id
)
461 length
= swprintf(temp
,
463 Device
->pnp
.unique_id
);
465 /* FIXME: Generate unique id! */
466 length
= swprintf(temp
, L
"%ls", L
"0000");
469 /* FIXME: Generate unique id! */
470 length
= swprintf(temp
, L
"%ls", L
"0000");
472 temp
[++length
] = UNICODE_NULL
;
474 buffer
= ExAllocatePoolWithTag (PagedPool
, length
* sizeof (WCHAR
), 'IPCA');
476 status
= STATUS_INSUFFICIENT_RESOURCES
;
480 RtlCopyMemory (buffer
, temp
, length
* sizeof (WCHAR
));
481 DPRINT("BusQueryInstanceID: %ls\n",buffer
);
482 Irp
->IoStatus
.Information
= (ULONG_PTR
) buffer
;
485 case BusQueryHardwareIDs
:
488 /* See comment in BusQueryDeviceID case */
489 if (DeviceData
->AcpiHandle
)
491 acpi_bus_get_device(DeviceData
->AcpiHandle
, &Device
);
493 length
+= swprintf(&temp
[length
],
495 Device
->pnp
.hardware_id
);
498 length
+= swprintf(&temp
[length
],
500 Device
->pnp
.hardware_id
);
505 length
+= swprintf(&temp
[length
],
506 L
"ACPI\\FixedButton");
509 length
+= swprintf(&temp
[length
],
514 temp
[length
] = UNICODE_NULL
;
518 temp
[length
] = UNICODE_NULL
;
520 buffer
= ExAllocatePoolWithTag (PagedPool
, length
* sizeof(WCHAR
), 'IPCA');
523 status
= STATUS_INSUFFICIENT_RESOURCES
;
527 RtlCopyMemory (buffer
, temp
, length
* sizeof(WCHAR
));
528 Irp
->IoStatus
.Information
= (ULONG_PTR
) buffer
;
529 DPRINT("BusQueryHardwareIDs: %ls\n",buffer
);
533 status
= Irp
->IoStatus
.Status
;
539 Bus_PDO_QueryDeviceText(
540 PPDO_DEVICE_DATA DeviceData
,
544 PIO_STACK_LOCATION stack
;
545 NTSTATUS status
= Irp
->IoStatus
.Status
;
548 stack
= IoGetCurrentIrpStackLocation (Irp
);
550 switch (stack
->Parameters
.QueryDeviceText
.DeviceTextType
) {
552 case DeviceTextDescription
:
554 if (!Irp
->IoStatus
.Information
) {
555 if (wcsstr (DeviceData
->HardwareIDs
, L
"PNP000") != 0)
556 Temp
= L
"Programmable interrupt controller";
557 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP010") != 0)
558 Temp
= L
"System timer";
559 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP020") != 0)
560 Temp
= L
"DMA controller";
561 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP03") != 0)
563 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP040") != 0)
564 Temp
= L
"Parallel port";
565 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP05") != 0)
566 Temp
= L
"Serial port";
567 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP06") != 0)
568 Temp
= L
"Disk controller";
569 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP07") != 0)
570 Temp
= L
"Disk controller";
571 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP09") != 0)
572 Temp
= L
"Display adapter";
573 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP0A0") != 0)
574 Temp
= L
"Bus controller";
575 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP0E0") != 0)
576 Temp
= L
"PCMCIA controller";
577 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP0F") != 0)
578 Temp
= L
"Mouse device";
579 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP8") != 0)
580 Temp
= L
"Network adapter";
581 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNPA0") != 0)
582 Temp
= L
"SCSI controller";
583 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNPB0") != 0)
584 Temp
= L
"Multimedia device";
585 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNPC00") != 0)
587 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP0C0C") != 0)
588 Temp
= L
"Power Button";
589 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP0C0E") != 0)
590 Temp
= L
"Sleep Button";
591 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP0C0D") != 0)
592 Temp
= L
"Lid Switch";
593 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP0C09") != 0)
594 Temp
= L
"ACPI Embedded Controller";
595 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP0C0B") != 0)
597 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP0A03") != 0)
598 Temp
= L
"PCI Root Bridge";
599 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP0C0A") != 0)
600 Temp
= L
"ACPI Battery";
601 else if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP0C0F") != 0)
602 Temp
= L
"PCI Interrupt Link";
603 else if (wcsstr(DeviceData
->HardwareIDs
, L
"ACPI_PWR") != 0)
604 Temp
= L
"ACPI Power Resource";
605 else if (wcsstr(DeviceData
->HardwareIDs
, L
"Processor") != 0)
607 else if (wcsstr(DeviceData
->HardwareIDs
, L
"ThermalZone") != 0)
608 Temp
= L
"ACPI Thermal Zone";
609 else if (wcsstr(DeviceData
->HardwareIDs
, L
"ACPI0002") != 0)
610 Temp
= L
"Smart Battery";
611 else if (wcsstr(DeviceData
->HardwareIDs
, L
"ACPI0003") != 0)
612 Temp
= L
"AC Adapter";
613 /* Simply checking if AcpiHandle is NULL eliminates the need to check
614 * for the 4 different names that ACPI knows the fixed feature button as internally
616 else if (!DeviceData
->AcpiHandle
)
617 Temp
= L
"ACPI Fixed Feature Button";
619 Temp
= L
"Other ACPI device";
621 Buffer
= ExAllocatePoolWithTag (PagedPool
, (wcslen(Temp
) + 1) * sizeof(WCHAR
), 'IPCA');
624 status
= STATUS_INSUFFICIENT_RESOURCES
;
628 RtlCopyMemory (Buffer
, Temp
, (wcslen(Temp
) + 1) * sizeof(WCHAR
));
630 DPRINT("\tDeviceTextDescription :%ws\n", Buffer
);
632 Irp
->IoStatus
.Information
= (ULONG_PTR
) Buffer
;
633 status
= STATUS_SUCCESS
;
646 Bus_PDO_QueryResources(
647 PPDO_DEVICE_DATA DeviceData
,
650 ULONG NumberOfResources
= 0;
651 PCM_RESOURCE_LIST ResourceList
;
652 PCM_PARTIAL_RESOURCE_DESCRIPTOR ResourceDescriptor
;
653 ACPI_STATUS AcpiStatus
;
655 ACPI_RESOURCE
* resource
;
656 ULONG ResourceListSize
;
659 struct acpi_device
*device
;
661 if (!DeviceData
->AcpiHandle
)
663 return Irp
->IoStatus
.Status
;
666 /* A bus number resource is not included in the list of current resources
667 * for the root PCI bus so we manually query one here and if we find it
668 * we create a resource list and add a bus number descriptor to it */
669 if (wcsstr(DeviceData
->HardwareIDs
, L
"PNP0A03") != 0)
671 acpi_bus_get_device(DeviceData
->AcpiHandle
, &device
);
673 AcpiStatus
= acpi_evaluate_integer(DeviceData
->AcpiHandle
, "_BBN", NULL
, &BusNumber
);
674 if (AcpiStatus
!= AE_OK
)
677 if (device
->flags
.unique_id
)
679 /* FIXME: Try the unique ID */
685 DPRINT1("Failed to find a bus number\n");
690 DPRINT1("Using _BBN for bus number\n");
693 DPRINT1("Found PCI root hub: %d\n", BusNumber
);
695 ResourceListSize
= sizeof(CM_RESOURCE_LIST
);
696 ResourceList
= (PCM_RESOURCE_LIST
)ExAllocatePoolWithTag(PagedPool
, ResourceListSize
, 'IPCA');
698 return STATUS_INSUFFICIENT_RESOURCES
;
700 ResourceList
->Count
= 1;
701 ResourceList
->List
[0].InterfaceType
= Internal
;
702 ResourceList
->List
[0].BusNumber
= 0;
703 ResourceList
->List
[0].PartialResourceList
.Version
= 1;
704 ResourceList
->List
[0].PartialResourceList
.Revision
= 1;
705 ResourceList
->List
[0].PartialResourceList
.Count
= 1;
706 ResourceDescriptor
= ResourceList
->List
[0].PartialResourceList
.PartialDescriptors
;
708 ResourceDescriptor
->Type
= CmResourceTypeBusNumber
;
709 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
710 ResourceDescriptor
->u
.BusNumber
.Start
= BusNumber
;
711 ResourceDescriptor
->u
.BusNumber
.Length
= 1;
713 Irp
->IoStatus
.Information
= (ULONG_PTR
)ResourceList
;
714 return STATUS_SUCCESS
;
717 /* Get current resources */
719 AcpiStatus
= AcpiGetCurrentResources(DeviceData
->AcpiHandle
, &Buffer
);
720 if ((!ACPI_SUCCESS(AcpiStatus
) && AcpiStatus
!= AE_BUFFER_OVERFLOW
) ||
723 return Irp
->IoStatus
.Status
;
726 Buffer
.Pointer
= ExAllocatePoolWithTag(PagedPool
, Buffer
.Length
, 'IPCA');
728 return STATUS_INSUFFICIENT_RESOURCES
;
730 AcpiStatus
= AcpiGetCurrentResources(DeviceData
->AcpiHandle
, &Buffer
);
731 if (!ACPI_SUCCESS(AcpiStatus
))
733 DPRINT1("AcpiGetCurrentResources #2 failed (0x%x)\n", AcpiStatus
);
735 return STATUS_UNSUCCESSFUL
;
738 resource
= Buffer
.Pointer
;
739 /* Count number of resources */
740 while (resource
->Type
!= ACPI_RESOURCE_TYPE_END_TAG
)
742 switch (resource
->Type
)
744 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ
:
746 ACPI_RESOURCE_EXTENDED_IRQ
*irq_data
= (ACPI_RESOURCE_EXTENDED_IRQ
*) &resource
->Data
;
747 NumberOfResources
+= irq_data
->InterruptCount
;
750 case ACPI_RESOURCE_TYPE_IRQ
:
752 ACPI_RESOURCE_IRQ
*irq_data
= (ACPI_RESOURCE_IRQ
*) &resource
->Data
;
753 NumberOfResources
+= irq_data
->InterruptCount
;
756 case ACPI_RESOURCE_TYPE_DMA
:
758 ACPI_RESOURCE_DMA
*dma_data
= (ACPI_RESOURCE_DMA
*) &resource
->Data
;
759 NumberOfResources
+= dma_data
->ChannelCount
;
762 case ACPI_RESOURCE_TYPE_ADDRESS16
:
763 case ACPI_RESOURCE_TYPE_ADDRESS32
:
764 case ACPI_RESOURCE_TYPE_ADDRESS64
:
765 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64
:
766 case ACPI_RESOURCE_TYPE_MEMORY24
:
767 case ACPI_RESOURCE_TYPE_MEMORY32
:
768 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32
:
769 case ACPI_RESOURCE_TYPE_IO
:
776 DPRINT1("Unknown resource type: %d\n", resource
->Type
);
780 resource
= ACPI_NEXT_RESOURCE(resource
);
783 /* Allocate memory */
784 ResourceListSize
= sizeof(CM_RESOURCE_LIST
) + sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR
) * (NumberOfResources
- 1);
785 ResourceList
= (PCM_RESOURCE_LIST
)ExAllocatePoolWithTag(PagedPool
, ResourceListSize
, 'IPCA');
789 ExFreePoolWithTag(Buffer
.Pointer
, 'IPCA');
790 return STATUS_INSUFFICIENT_RESOURCES
;
792 ResourceList
->Count
= 1;
793 ResourceList
->List
[0].InterfaceType
= Internal
; /* FIXME */
794 ResourceList
->List
[0].BusNumber
= 0; /* We're the only ACPI bus device in the system */
795 ResourceList
->List
[0].PartialResourceList
.Version
= 1;
796 ResourceList
->List
[0].PartialResourceList
.Revision
= 1;
797 ResourceList
->List
[0].PartialResourceList
.Count
= NumberOfResources
;
798 ResourceDescriptor
= ResourceList
->List
[0].PartialResourceList
.PartialDescriptors
;
800 /* Fill resources list structure */
801 resource
= Buffer
.Pointer
;
802 while (resource
->Type
!= ACPI_RESOURCE_TYPE_END_TAG
)
804 switch (resource
->Type
)
806 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ
:
808 ACPI_RESOURCE_EXTENDED_IRQ
*irq_data
= (ACPI_RESOURCE_EXTENDED_IRQ
*) &resource
->Data
;
809 for (i
= 0; i
< irq_data
->InterruptCount
; i
++)
811 ResourceDescriptor
->Type
= CmResourceTypeInterrupt
;
813 ResourceDescriptor
->ShareDisposition
=
814 (irq_data
->Sharable
== ACPI_SHARED
? CmResourceShareShared
: CmResourceShareDeviceExclusive
);
815 ResourceDescriptor
->Flags
=
816 (irq_data
->Triggering
== ACPI_LEVEL_SENSITIVE
? CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE
: CM_RESOURCE_INTERRUPT_LATCHED
);
817 ResourceDescriptor
->u
.Interrupt
.Level
=
818 ResourceDescriptor
->u
.Interrupt
.Vector
= irq_data
->Interrupts
[i
];
819 ResourceDescriptor
->u
.Interrupt
.Affinity
= (KAFFINITY
)(-1);
821 ResourceDescriptor
++;
825 case ACPI_RESOURCE_TYPE_IRQ
:
827 ACPI_RESOURCE_IRQ
*irq_data
= (ACPI_RESOURCE_IRQ
*) &resource
->Data
;
828 for (i
= 0; i
< irq_data
->InterruptCount
; i
++)
830 ResourceDescriptor
->Type
= CmResourceTypeInterrupt
;
832 ResourceDescriptor
->ShareDisposition
=
833 (irq_data
->Sharable
== ACPI_SHARED
? CmResourceShareShared
: CmResourceShareDeviceExclusive
);
834 ResourceDescriptor
->Flags
=
835 (irq_data
->Triggering
== ACPI_LEVEL_SENSITIVE
? CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE
: CM_RESOURCE_INTERRUPT_LATCHED
);
836 ResourceDescriptor
->u
.Interrupt
.Level
=
837 ResourceDescriptor
->u
.Interrupt
.Vector
= irq_data
->Interrupts
[i
];
838 ResourceDescriptor
->u
.Interrupt
.Affinity
= (KAFFINITY
)(-1);
840 ResourceDescriptor
++;
844 case ACPI_RESOURCE_TYPE_DMA
:
846 ACPI_RESOURCE_DMA
*dma_data
= (ACPI_RESOURCE_DMA
*) &resource
->Data
;
847 for (i
= 0; i
< dma_data
->ChannelCount
; i
++)
849 ResourceDescriptor
->Type
= CmResourceTypeDma
;
850 ResourceDescriptor
->Flags
= 0;
851 switch (dma_data
->Type
)
853 case ACPI_TYPE_A
: ResourceDescriptor
->Flags
|= CM_RESOURCE_DMA_TYPE_A
; break;
854 case ACPI_TYPE_B
: ResourceDescriptor
->Flags
|= CM_RESOURCE_DMA_TYPE_B
; break;
855 case ACPI_TYPE_F
: ResourceDescriptor
->Flags
|= CM_RESOURCE_DMA_TYPE_F
; break;
857 if (dma_data
->BusMaster
== ACPI_BUS_MASTER
)
858 ResourceDescriptor
->Flags
|= CM_RESOURCE_DMA_BUS_MASTER
;
859 switch (dma_data
->Transfer
)
861 case ACPI_TRANSFER_8
: ResourceDescriptor
->Flags
|= CM_RESOURCE_DMA_8
; break;
862 case ACPI_TRANSFER_16
: ResourceDescriptor
->Flags
|= CM_RESOURCE_DMA_16
; break;
863 case ACPI_TRANSFER_8_16
: ResourceDescriptor
->Flags
|= CM_RESOURCE_DMA_8_AND_16
; break;
865 ResourceDescriptor
->u
.Dma
.Channel
= dma_data
->Channels
[i
];
867 ResourceDescriptor
++;
871 case ACPI_RESOURCE_TYPE_IO
:
873 ACPI_RESOURCE_IO
*io_data
= (ACPI_RESOURCE_IO
*) &resource
->Data
;
874 ResourceDescriptor
->Type
= CmResourceTypePort
;
875 ResourceDescriptor
->ShareDisposition
= CmResourceShareDriverExclusive
;
876 ResourceDescriptor
->Flags
= CM_RESOURCE_PORT_IO
;
877 if (io_data
->IoDecode
== ACPI_DECODE_16
)
878 ResourceDescriptor
->Flags
|= CM_RESOURCE_PORT_16_BIT_DECODE
;
880 ResourceDescriptor
->Flags
|= CM_RESOURCE_PORT_10_BIT_DECODE
;
881 ResourceDescriptor
->u
.Port
.Start
.QuadPart
= io_data
->Minimum
;
882 ResourceDescriptor
->u
.Port
.Length
= io_data
->AddressLength
;
884 ResourceDescriptor
++;
887 case ACPI_RESOURCE_TYPE_ADDRESS16
:
889 ACPI_RESOURCE_ADDRESS16
*addr16_data
= (ACPI_RESOURCE_ADDRESS16
*) &resource
->Data
;
890 if (addr16_data
->ResourceType
== ACPI_BUS_NUMBER_RANGE
)
892 ResourceDescriptor
->Type
= CmResourceTypeBusNumber
;
893 ResourceDescriptor
->ShareDisposition
= CmResourceShareShared
;
894 ResourceDescriptor
->Flags
= 0;
895 ResourceDescriptor
->u
.BusNumber
.Start
= addr16_data
->Minimum
;
896 ResourceDescriptor
->u
.BusNumber
.Length
= addr16_data
->AddressLength
;
898 else if (addr16_data
->ResourceType
== ACPI_IO_RANGE
)
900 ResourceDescriptor
->Type
= CmResourceTypePort
;
901 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
902 ResourceDescriptor
->Flags
= CM_RESOURCE_PORT_IO
;
903 if (addr16_data
->Decode
== ACPI_POS_DECODE
)
904 ResourceDescriptor
->Flags
|= CM_RESOURCE_PORT_POSITIVE_DECODE
;
905 ResourceDescriptor
->u
.Port
.Start
.QuadPart
= addr16_data
->Minimum
;
906 ResourceDescriptor
->u
.Port
.Length
= addr16_data
->AddressLength
;
910 ResourceDescriptor
->Type
= CmResourceTypeMemory
;
911 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
912 ResourceDescriptor
->Flags
= 0;
913 if (addr16_data
->Info
.Mem
.WriteProtect
== ACPI_READ_ONLY_MEMORY
)
914 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
916 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
917 switch (addr16_data
->Info
.Mem
.Caching
)
919 case ACPI_CACHABLE_MEMORY
: ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_CACHEABLE
; break;
920 case ACPI_WRITE_COMBINING_MEMORY
: ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_COMBINEDWRITE
; break;
921 case ACPI_PREFETCHABLE_MEMORY
: ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_PREFETCHABLE
; break;
923 ResourceDescriptor
->u
.Memory
.Start
.QuadPart
= addr16_data
->Minimum
;
924 ResourceDescriptor
->u
.Memory
.Length
= addr16_data
->AddressLength
;
926 ResourceDescriptor
++;
929 case ACPI_RESOURCE_TYPE_ADDRESS32
:
931 ACPI_RESOURCE_ADDRESS32
*addr32_data
= (ACPI_RESOURCE_ADDRESS32
*) &resource
->Data
;
932 if (addr32_data
->ResourceType
== ACPI_BUS_NUMBER_RANGE
)
934 ResourceDescriptor
->Type
= CmResourceTypeBusNumber
;
935 ResourceDescriptor
->ShareDisposition
= CmResourceShareShared
;
936 ResourceDescriptor
->Flags
= 0;
937 ResourceDescriptor
->u
.BusNumber
.Start
= addr32_data
->Minimum
;
938 ResourceDescriptor
->u
.BusNumber
.Length
= addr32_data
->AddressLength
;
940 else if (addr32_data
->ResourceType
== ACPI_IO_RANGE
)
942 ResourceDescriptor
->Type
= CmResourceTypePort
;
943 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
944 ResourceDescriptor
->Flags
= CM_RESOURCE_PORT_IO
;
945 if (addr32_data
->Decode
== ACPI_POS_DECODE
)
946 ResourceDescriptor
->Flags
|= CM_RESOURCE_PORT_POSITIVE_DECODE
;
947 ResourceDescriptor
->u
.Port
.Start
.QuadPart
= addr32_data
->Minimum
;
948 ResourceDescriptor
->u
.Port
.Length
= addr32_data
->AddressLength
;
952 ResourceDescriptor
->Type
= CmResourceTypeMemory
;
953 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
954 ResourceDescriptor
->Flags
= 0;
955 if (addr32_data
->Info
.Mem
.WriteProtect
== ACPI_READ_ONLY_MEMORY
)
956 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
958 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
959 switch (addr32_data
->Info
.Mem
.Caching
)
961 case ACPI_CACHABLE_MEMORY
: ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_CACHEABLE
; break;
962 case ACPI_WRITE_COMBINING_MEMORY
: ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_COMBINEDWRITE
; break;
963 case ACPI_PREFETCHABLE_MEMORY
: ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_PREFETCHABLE
; break;
965 ResourceDescriptor
->u
.Memory
.Start
.QuadPart
= addr32_data
->Minimum
;
966 ResourceDescriptor
->u
.Memory
.Length
= addr32_data
->AddressLength
;
968 ResourceDescriptor
++;
971 case ACPI_RESOURCE_TYPE_ADDRESS64
:
973 ACPI_RESOURCE_ADDRESS64
*addr64_data
= (ACPI_RESOURCE_ADDRESS64
*) &resource
->Data
;
974 if (addr64_data
->ResourceType
== ACPI_BUS_NUMBER_RANGE
)
976 DPRINT1("64-bit bus address is not supported!\n");
977 ResourceDescriptor
->Type
= CmResourceTypeBusNumber
;
978 ResourceDescriptor
->ShareDisposition
= CmResourceShareShared
;
979 ResourceDescriptor
->Flags
= 0;
980 ResourceDescriptor
->u
.BusNumber
.Start
= (ULONG
)addr64_data
->Minimum
;
981 ResourceDescriptor
->u
.BusNumber
.Length
= addr64_data
->AddressLength
;
983 else if (addr64_data
->ResourceType
== ACPI_IO_RANGE
)
985 ResourceDescriptor
->Type
= CmResourceTypePort
;
986 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
987 ResourceDescriptor
->Flags
= CM_RESOURCE_PORT_IO
;
988 if (addr64_data
->Decode
== ACPI_POS_DECODE
)
989 ResourceDescriptor
->Flags
|= CM_RESOURCE_PORT_POSITIVE_DECODE
;
990 ResourceDescriptor
->u
.Port
.Start
.QuadPart
= addr64_data
->Minimum
;
991 ResourceDescriptor
->u
.Port
.Length
= addr64_data
->AddressLength
;
995 ResourceDescriptor
->Type
= CmResourceTypeMemory
;
996 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
997 ResourceDescriptor
->Flags
= 0;
998 if (addr64_data
->Info
.Mem
.WriteProtect
== ACPI_READ_ONLY_MEMORY
)
999 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
1001 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
1002 switch (addr64_data
->Info
.Mem
.Caching
)
1004 case ACPI_CACHABLE_MEMORY
: ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_CACHEABLE
; break;
1005 case ACPI_WRITE_COMBINING_MEMORY
: ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_COMBINEDWRITE
; break;
1006 case ACPI_PREFETCHABLE_MEMORY
: ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_PREFETCHABLE
; break;
1008 ResourceDescriptor
->u
.Memory
.Start
.QuadPart
= addr64_data
->Minimum
;
1009 ResourceDescriptor
->u
.Memory
.Length
= addr64_data
->AddressLength
;
1011 ResourceDescriptor
++;
1014 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64
:
1016 ACPI_RESOURCE_EXTENDED_ADDRESS64
*addr64_data
= (ACPI_RESOURCE_EXTENDED_ADDRESS64
*) &resource
->Data
;
1017 if (addr64_data
->ResourceType
== ACPI_BUS_NUMBER_RANGE
)
1019 DPRINT1("64-bit bus address is not supported!\n");
1020 ResourceDescriptor
->Type
= CmResourceTypeBusNumber
;
1021 ResourceDescriptor
->ShareDisposition
= CmResourceShareShared
;
1022 ResourceDescriptor
->Flags
= 0;
1023 ResourceDescriptor
->u
.BusNumber
.Start
= (ULONG
)addr64_data
->Minimum
;
1024 ResourceDescriptor
->u
.BusNumber
.Length
= addr64_data
->AddressLength
;
1026 else if (addr64_data
->ResourceType
== ACPI_IO_RANGE
)
1028 ResourceDescriptor
->Type
= CmResourceTypePort
;
1029 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1030 ResourceDescriptor
->Flags
= CM_RESOURCE_PORT_IO
;
1031 if (addr64_data
->Decode
== ACPI_POS_DECODE
)
1032 ResourceDescriptor
->Flags
|= CM_RESOURCE_PORT_POSITIVE_DECODE
;
1033 ResourceDescriptor
->u
.Port
.Start
.QuadPart
= addr64_data
->Minimum
;
1034 ResourceDescriptor
->u
.Port
.Length
= addr64_data
->AddressLength
;
1038 ResourceDescriptor
->Type
= CmResourceTypeMemory
;
1039 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1040 ResourceDescriptor
->Flags
= 0;
1041 if (addr64_data
->Info
.Mem
.WriteProtect
== ACPI_READ_ONLY_MEMORY
)
1042 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
1044 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
1045 switch (addr64_data
->Info
.Mem
.Caching
)
1047 case ACPI_CACHABLE_MEMORY
: ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_CACHEABLE
; break;
1048 case ACPI_WRITE_COMBINING_MEMORY
: ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_COMBINEDWRITE
; break;
1049 case ACPI_PREFETCHABLE_MEMORY
: ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_PREFETCHABLE
; break;
1051 ResourceDescriptor
->u
.Memory
.Start
.QuadPart
= addr64_data
->Minimum
;
1052 ResourceDescriptor
->u
.Memory
.Length
= addr64_data
->AddressLength
;
1054 ResourceDescriptor
++;
1057 case ACPI_RESOURCE_TYPE_MEMORY24
:
1059 ACPI_RESOURCE_MEMORY24
*mem24_data
= (ACPI_RESOURCE_MEMORY24
*) &resource
->Data
;
1060 ResourceDescriptor
->Type
= CmResourceTypeMemory
;
1061 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1062 ResourceDescriptor
->Flags
= CM_RESOURCE_MEMORY_24
;
1063 if (mem24_data
->WriteProtect
== ACPI_READ_ONLY_MEMORY
)
1064 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
1066 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
1067 ResourceDescriptor
->u
.Memory
.Start
.QuadPart
= mem24_data
->Minimum
;
1068 ResourceDescriptor
->u
.Memory
.Length
= mem24_data
->AddressLength
;
1070 ResourceDescriptor
++;
1073 case ACPI_RESOURCE_TYPE_MEMORY32
:
1075 ACPI_RESOURCE_MEMORY32
*mem32_data
= (ACPI_RESOURCE_MEMORY32
*) &resource
->Data
;
1076 ResourceDescriptor
->Type
= CmResourceTypeMemory
;
1077 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1078 ResourceDescriptor
->Flags
= 0;
1079 if (mem32_data
->WriteProtect
== ACPI_READ_ONLY_MEMORY
)
1080 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
1082 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
1083 ResourceDescriptor
->u
.Memory
.Start
.QuadPart
= mem32_data
->Minimum
;
1084 ResourceDescriptor
->u
.Memory
.Length
= mem32_data
->AddressLength
;
1086 ResourceDescriptor
++;
1089 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32
:
1091 ACPI_RESOURCE_FIXED_MEMORY32
*memfixed32_data
= (ACPI_RESOURCE_FIXED_MEMORY32
*) &resource
->Data
;
1092 ResourceDescriptor
->Type
= CmResourceTypeMemory
;
1093 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1094 ResourceDescriptor
->Flags
= 0;
1095 if (memfixed32_data
->WriteProtect
== ACPI_READ_ONLY_MEMORY
)
1096 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
1098 ResourceDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
1099 ResourceDescriptor
->u
.Memory
.Start
.QuadPart
= memfixed32_data
->Address
;
1100 ResourceDescriptor
->u
.Memory
.Length
= memfixed32_data
->AddressLength
;
1102 ResourceDescriptor
++;
1110 resource
= ACPI_NEXT_RESOURCE(resource
);
1113 ExFreePoolWithTag(Buffer
.Pointer
, 'IPCA');
1114 Irp
->IoStatus
.Information
= (ULONG_PTR
)ResourceList
;
1115 return STATUS_SUCCESS
;
1119 Bus_PDO_QueryResourceRequirements(
1120 PPDO_DEVICE_DATA DeviceData
,
1123 ULONG NumberOfResources
= 0;
1124 ACPI_STATUS AcpiStatus
;
1126 ACPI_RESOURCE
* resource
;
1127 ULONG i
, RequirementsListSize
;
1128 PIO_RESOURCE_REQUIREMENTS_LIST RequirementsList
;
1129 PIO_RESOURCE_DESCRIPTOR RequirementDescriptor
;
1130 BOOLEAN CurrentRes
= FALSE
;
1134 if (!DeviceData
->AcpiHandle
)
1136 return Irp
->IoStatus
.Status
;
1139 /* Get current resources */
1144 AcpiStatus
= AcpiGetCurrentResources(DeviceData
->AcpiHandle
, &Buffer
);
1146 AcpiStatus
= AcpiGetPossibleResources(DeviceData
->AcpiHandle
, &Buffer
);
1147 if ((!ACPI_SUCCESS(AcpiStatus
) && AcpiStatus
!= AE_BUFFER_OVERFLOW
) ||
1153 return Irp
->IoStatus
.Status
;
1159 Buffer
.Pointer
= ExAllocatePoolWithTag(PagedPool
, Buffer
.Length
, 'IPCA');
1160 if (!Buffer
.Pointer
)
1161 return STATUS_INSUFFICIENT_RESOURCES
;
1164 AcpiStatus
= AcpiGetCurrentResources(DeviceData
->AcpiHandle
, &Buffer
);
1166 AcpiStatus
= AcpiGetPossibleResources(DeviceData
->AcpiHandle
, &Buffer
);
1167 if (!ACPI_SUCCESS(AcpiStatus
))
1169 DPRINT1("AcpiGetCurrentResources #2 failed (0x%x)\n", AcpiStatus
);
1171 return STATUS_UNSUCCESSFUL
;
1174 resource
= Buffer
.Pointer
;
1175 /* Count number of resources */
1176 while (resource
->Type
!= ACPI_RESOURCE_TYPE_END_TAG
)
1178 switch (resource
->Type
)
1180 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ
:
1182 ACPI_RESOURCE_EXTENDED_IRQ
*irq_data
= (ACPI_RESOURCE_EXTENDED_IRQ
*) &resource
->Data
;
1183 NumberOfResources
+= irq_data
->InterruptCount
;
1186 case ACPI_RESOURCE_TYPE_IRQ
:
1188 ACPI_RESOURCE_IRQ
*irq_data
= (ACPI_RESOURCE_IRQ
*) &resource
->Data
;
1189 NumberOfResources
+= irq_data
->InterruptCount
;
1192 case ACPI_RESOURCE_TYPE_DMA
:
1194 ACPI_RESOURCE_DMA
*dma_data
= (ACPI_RESOURCE_DMA
*) &resource
->Data
;
1195 NumberOfResources
+= dma_data
->ChannelCount
;
1198 case ACPI_RESOURCE_TYPE_ADDRESS16
:
1199 case ACPI_RESOURCE_TYPE_ADDRESS32
:
1200 case ACPI_RESOURCE_TYPE_ADDRESS64
:
1201 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64
:
1202 case ACPI_RESOURCE_TYPE_MEMORY24
:
1203 case ACPI_RESOURCE_TYPE_MEMORY32
:
1204 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32
:
1205 case ACPI_RESOURCE_TYPE_IO
:
1207 NumberOfResources
++;
1215 resource
= ACPI_NEXT_RESOURCE(resource
);
1218 RequirementsListSize
= sizeof(IO_RESOURCE_REQUIREMENTS_LIST
) + sizeof(IO_RESOURCE_DESCRIPTOR
) * (NumberOfResources
- 1);
1219 RequirementsList
= (PIO_RESOURCE_REQUIREMENTS_LIST
)ExAllocatePoolWithTag(PagedPool
, RequirementsListSize
, 'IPCA');
1221 if (!RequirementsList
)
1223 ExFreePoolWithTag(Buffer
.Pointer
, 'IPCA');
1224 return STATUS_INSUFFICIENT_RESOURCES
;
1226 RequirementsList
->ListSize
= RequirementsListSize
;
1227 RequirementsList
->InterfaceType
= Internal
;
1228 RequirementsList
->BusNumber
= 0;
1229 RequirementsList
->SlotNumber
= 0; /* Not used by WDM drivers */
1230 RequirementsList
->AlternativeLists
= 1;
1231 RequirementsList
->List
[0].Version
= 1;
1232 RequirementsList
->List
[0].Revision
= 1;
1233 RequirementsList
->List
[0].Count
= NumberOfResources
;
1234 RequirementDescriptor
= RequirementsList
->List
[0].Descriptors
;
1236 /* Fill resources list structure */
1237 resource
= Buffer
.Pointer
;
1238 while (resource
->Type
!= ACPI_RESOURCE_TYPE_END_TAG
)
1240 switch (resource
->Type
)
1242 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ
:
1244 ACPI_RESOURCE_EXTENDED_IRQ
*irq_data
= (ACPI_RESOURCE_EXTENDED_IRQ
*) &resource
->Data
;
1245 for (i
= 0; i
< irq_data
->InterruptCount
; i
++)
1247 RequirementDescriptor
->Option
= CurrentRes
? 0 : IO_RESOURCE_PREFERRED
;
1248 RequirementDescriptor
->Type
= CmResourceTypeInterrupt
;
1249 RequirementDescriptor
->ShareDisposition
= (irq_data
->Sharable
== ACPI_SHARED
? CmResourceShareShared
: CmResourceShareDeviceExclusive
);
1250 RequirementDescriptor
->Flags
=(irq_data
->Triggering
== ACPI_LEVEL_SENSITIVE
? CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE
: CM_RESOURCE_INTERRUPT_LATCHED
);
1251 RequirementDescriptor
->u
.Interrupt
.MinimumVector
=
1252 RequirementDescriptor
->u
.Interrupt
.MaximumVector
= irq_data
->Interrupts
[i
];
1254 RequirementDescriptor
++;
1258 case ACPI_RESOURCE_TYPE_IRQ
:
1260 ACPI_RESOURCE_IRQ
*irq_data
= (ACPI_RESOURCE_IRQ
*) &resource
->Data
;
1261 for (i
= 0; i
< irq_data
->InterruptCount
; i
++)
1263 RequirementDescriptor
->Option
= CurrentRes
? 0 : IO_RESOURCE_PREFERRED
;
1264 RequirementDescriptor
->Type
= CmResourceTypeInterrupt
;
1265 RequirementDescriptor
->ShareDisposition
= (irq_data
->Sharable
== ACPI_SHARED
? CmResourceShareShared
: CmResourceShareDeviceExclusive
);
1266 RequirementDescriptor
->Flags
=(irq_data
->Triggering
== ACPI_LEVEL_SENSITIVE
? CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE
: CM_RESOURCE_INTERRUPT_LATCHED
);
1267 RequirementDescriptor
->u
.Interrupt
.MinimumVector
=
1268 RequirementDescriptor
->u
.Interrupt
.MaximumVector
= irq_data
->Interrupts
[i
];
1270 RequirementDescriptor
++;
1274 case ACPI_RESOURCE_TYPE_DMA
:
1276 ACPI_RESOURCE_DMA
*dma_data
= (ACPI_RESOURCE_DMA
*) &resource
->Data
;
1277 for (i
= 0; i
< dma_data
->ChannelCount
; i
++)
1279 RequirementDescriptor
->Type
= CmResourceTypeDma
;
1280 RequirementDescriptor
->Flags
= 0;
1281 switch (dma_data
->Type
)
1283 case ACPI_TYPE_A
: RequirementDescriptor
->Flags
|= CM_RESOURCE_DMA_TYPE_A
; break;
1284 case ACPI_TYPE_B
: RequirementDescriptor
->Flags
|= CM_RESOURCE_DMA_TYPE_B
; break;
1285 case ACPI_TYPE_F
: RequirementDescriptor
->Flags
|= CM_RESOURCE_DMA_TYPE_F
; break;
1287 if (dma_data
->BusMaster
== ACPI_BUS_MASTER
)
1288 RequirementDescriptor
->Flags
|= CM_RESOURCE_DMA_BUS_MASTER
;
1289 switch (dma_data
->Transfer
)
1291 case ACPI_TRANSFER_8
: RequirementDescriptor
->Flags
|= CM_RESOURCE_DMA_8
; break;
1292 case ACPI_TRANSFER_16
: RequirementDescriptor
->Flags
|= CM_RESOURCE_DMA_16
; break;
1293 case ACPI_TRANSFER_8_16
: RequirementDescriptor
->Flags
|= CM_RESOURCE_DMA_8_AND_16
; break;
1296 RequirementDescriptor
->Option
= CurrentRes
? 0 : IO_RESOURCE_PREFERRED
;
1297 RequirementDescriptor
->ShareDisposition
= CmResourceShareDriverExclusive
;
1298 RequirementDescriptor
->u
.Dma
.MinimumChannel
=
1299 RequirementDescriptor
->u
.Dma
.MaximumChannel
= dma_data
->Channels
[i
];
1300 RequirementDescriptor
++;
1304 case ACPI_RESOURCE_TYPE_IO
:
1306 ACPI_RESOURCE_IO
*io_data
= (ACPI_RESOURCE_IO
*) &resource
->Data
;
1307 RequirementDescriptor
->Flags
= CM_RESOURCE_PORT_IO
;
1308 if (io_data
->IoDecode
== ACPI_DECODE_16
)
1309 RequirementDescriptor
->Flags
|= CM_RESOURCE_PORT_16_BIT_DECODE
;
1311 RequirementDescriptor
->Flags
|= CM_RESOURCE_PORT_10_BIT_DECODE
;
1312 RequirementDescriptor
->u
.Port
.Length
= io_data
->AddressLength
;
1313 RequirementDescriptor
->Option
= CurrentRes
? 0 : IO_RESOURCE_PREFERRED
;
1314 RequirementDescriptor
->Type
= CmResourceTypePort
;
1315 RequirementDescriptor
->ShareDisposition
= CmResourceShareDriverExclusive
;
1316 RequirementDescriptor
->u
.Port
.Alignment
= io_data
->Alignment
;
1317 RequirementDescriptor
->u
.Port
.MinimumAddress
.QuadPart
= io_data
->Minimum
;
1318 RequirementDescriptor
->u
.Port
.MaximumAddress
.QuadPart
= io_data
->Maximum
;
1320 RequirementDescriptor
++;
1323 case ACPI_RESOURCE_TYPE_ADDRESS16
:
1325 ACPI_RESOURCE_ADDRESS16
*addr16_data
= (ACPI_RESOURCE_ADDRESS16
*) &resource
->Data
;
1326 RequirementDescriptor
->Option
= CurrentRes
? 0 : IO_RESOURCE_PREFERRED
;
1327 if (addr16_data
->ResourceType
== ACPI_BUS_NUMBER_RANGE
)
1329 RequirementDescriptor
->Type
= CmResourceTypeBusNumber
;
1330 RequirementDescriptor
->ShareDisposition
= CmResourceShareShared
;
1331 RequirementDescriptor
->Flags
= 0;
1332 RequirementDescriptor
->u
.BusNumber
.MinBusNumber
= addr16_data
->Minimum
;
1333 RequirementDescriptor
->u
.BusNumber
.MaxBusNumber
= addr16_data
->Maximum
;
1334 RequirementDescriptor
->u
.BusNumber
.Length
= addr16_data
->AddressLength
;
1336 else if (addr16_data
->ResourceType
== ACPI_IO_RANGE
)
1338 RequirementDescriptor
->Type
= CmResourceTypePort
;
1339 RequirementDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1340 RequirementDescriptor
->Flags
= CM_RESOURCE_PORT_IO
;
1341 if (addr16_data
->Decode
== ACPI_POS_DECODE
)
1342 RequirementDescriptor
->Flags
|= CM_RESOURCE_PORT_POSITIVE_DECODE
;
1343 RequirementDescriptor
->u
.Port
.MinimumAddress
.QuadPart
= addr16_data
->Minimum
;
1344 RequirementDescriptor
->u
.Port
.MaximumAddress
.QuadPart
= addr16_data
->Maximum
;
1345 RequirementDescriptor
->u
.Port
.Length
= addr16_data
->AddressLength
;
1349 RequirementDescriptor
->Type
= CmResourceTypeMemory
;
1350 RequirementDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1351 RequirementDescriptor
->Flags
= 0;
1352 if (addr16_data
->Info
.Mem
.WriteProtect
== ACPI_READ_ONLY_MEMORY
)
1353 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
1355 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
1356 switch (addr16_data
->Info
.Mem
.Caching
)
1358 case ACPI_CACHABLE_MEMORY
: RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_CACHEABLE
; break;
1359 case ACPI_WRITE_COMBINING_MEMORY
: RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_COMBINEDWRITE
; break;
1360 case ACPI_PREFETCHABLE_MEMORY
: RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_PREFETCHABLE
; break;
1362 RequirementDescriptor
->u
.Memory
.MinimumAddress
.QuadPart
= addr16_data
->Minimum
;
1363 RequirementDescriptor
->u
.Memory
.MaximumAddress
.QuadPart
= addr16_data
->Maximum
;
1364 RequirementDescriptor
->u
.Memory
.Length
= addr16_data
->AddressLength
;
1366 RequirementDescriptor
++;
1369 case ACPI_RESOURCE_TYPE_ADDRESS32
:
1371 ACPI_RESOURCE_ADDRESS32
*addr32_data
= (ACPI_RESOURCE_ADDRESS32
*) &resource
->Data
;
1372 RequirementDescriptor
->Option
= CurrentRes
? 0 : IO_RESOURCE_PREFERRED
;
1373 if (addr32_data
->ResourceType
== ACPI_BUS_NUMBER_RANGE
)
1375 RequirementDescriptor
->Type
= CmResourceTypeBusNumber
;
1376 RequirementDescriptor
->ShareDisposition
= CmResourceShareShared
;
1377 RequirementDescriptor
->Flags
= 0;
1378 RequirementDescriptor
->u
.BusNumber
.MinBusNumber
= addr32_data
->Minimum
;
1379 RequirementDescriptor
->u
.BusNumber
.MaxBusNumber
= addr32_data
->Maximum
;
1380 RequirementDescriptor
->u
.BusNumber
.Length
= addr32_data
->AddressLength
;
1382 else if (addr32_data
->ResourceType
== ACPI_IO_RANGE
)
1384 RequirementDescriptor
->Type
= CmResourceTypePort
;
1385 RequirementDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1386 RequirementDescriptor
->Flags
= CM_RESOURCE_PORT_IO
;
1387 if (addr32_data
->Decode
== ACPI_POS_DECODE
)
1388 RequirementDescriptor
->Flags
|= CM_RESOURCE_PORT_POSITIVE_DECODE
;
1389 RequirementDescriptor
->u
.Port
.MinimumAddress
.QuadPart
= addr32_data
->Minimum
;
1390 RequirementDescriptor
->u
.Port
.MaximumAddress
.QuadPart
= addr32_data
->Maximum
;
1391 RequirementDescriptor
->u
.Port
.Length
= addr32_data
->AddressLength
;
1395 RequirementDescriptor
->Type
= CmResourceTypeMemory
;
1396 RequirementDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1397 RequirementDescriptor
->Flags
= 0;
1398 if (addr32_data
->Info
.Mem
.WriteProtect
== ACPI_READ_ONLY_MEMORY
)
1399 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
1401 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
1402 switch (addr32_data
->Info
.Mem
.Caching
)
1404 case ACPI_CACHABLE_MEMORY
: RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_CACHEABLE
; break;
1405 case ACPI_WRITE_COMBINING_MEMORY
: RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_COMBINEDWRITE
; break;
1406 case ACPI_PREFETCHABLE_MEMORY
: RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_PREFETCHABLE
; break;
1408 RequirementDescriptor
->u
.Memory
.MinimumAddress
.QuadPart
= addr32_data
->Minimum
;
1409 RequirementDescriptor
->u
.Memory
.MaximumAddress
.QuadPart
= addr32_data
->Maximum
;
1410 RequirementDescriptor
->u
.Memory
.Length
= addr32_data
->AddressLength
;
1412 RequirementDescriptor
++;
1415 case ACPI_RESOURCE_TYPE_ADDRESS64
:
1417 ACPI_RESOURCE_ADDRESS64
*addr64_data
= (ACPI_RESOURCE_ADDRESS64
*) &resource
->Data
;
1418 RequirementDescriptor
->Option
= CurrentRes
? 0 : IO_RESOURCE_PREFERRED
;
1419 if (addr64_data
->ResourceType
== ACPI_BUS_NUMBER_RANGE
)
1421 DPRINT1("64-bit bus address is not supported!\n");
1422 RequirementDescriptor
->Type
= CmResourceTypeBusNumber
;
1423 RequirementDescriptor
->ShareDisposition
= CmResourceShareShared
;
1424 RequirementDescriptor
->Flags
= 0;
1425 RequirementDescriptor
->u
.BusNumber
.MinBusNumber
= (ULONG
)addr64_data
->Minimum
;
1426 RequirementDescriptor
->u
.BusNumber
.MaxBusNumber
= (ULONG
)addr64_data
->Maximum
;
1427 RequirementDescriptor
->u
.BusNumber
.Length
= addr64_data
->AddressLength
;
1429 else if (addr64_data
->ResourceType
== ACPI_IO_RANGE
)
1431 RequirementDescriptor
->Type
= CmResourceTypePort
;
1432 RequirementDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1433 RequirementDescriptor
->Flags
= CM_RESOURCE_PORT_IO
;
1434 if (addr64_data
->Decode
== ACPI_POS_DECODE
)
1435 RequirementDescriptor
->Flags
|= CM_RESOURCE_PORT_POSITIVE_DECODE
;
1436 RequirementDescriptor
->u
.Port
.MinimumAddress
.QuadPart
= addr64_data
->Minimum
;
1437 RequirementDescriptor
->u
.Port
.MaximumAddress
.QuadPart
= addr64_data
->Maximum
;
1438 RequirementDescriptor
->u
.Port
.Length
= addr64_data
->AddressLength
;
1442 RequirementDescriptor
->Type
= CmResourceTypeMemory
;
1443 RequirementDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1444 RequirementDescriptor
->Flags
= 0;
1445 if (addr64_data
->Info
.Mem
.WriteProtect
== ACPI_READ_ONLY_MEMORY
)
1446 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
1448 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
1449 switch (addr64_data
->Info
.Mem
.Caching
)
1451 case ACPI_CACHABLE_MEMORY
: RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_CACHEABLE
; break;
1452 case ACPI_WRITE_COMBINING_MEMORY
: RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_COMBINEDWRITE
; break;
1453 case ACPI_PREFETCHABLE_MEMORY
: RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_PREFETCHABLE
; break;
1455 RequirementDescriptor
->u
.Memory
.MinimumAddress
.QuadPart
= addr64_data
->Minimum
;
1456 RequirementDescriptor
->u
.Memory
.MaximumAddress
.QuadPart
= addr64_data
->Maximum
;
1457 RequirementDescriptor
->u
.Memory
.Length
= addr64_data
->AddressLength
;
1459 RequirementDescriptor
++;
1462 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64
:
1464 ACPI_RESOURCE_EXTENDED_ADDRESS64
*addr64_data
= (ACPI_RESOURCE_EXTENDED_ADDRESS64
*) &resource
->Data
;
1465 RequirementDescriptor
->Option
= CurrentRes
? 0 : IO_RESOURCE_PREFERRED
;
1466 if (addr64_data
->ResourceType
== ACPI_BUS_NUMBER_RANGE
)
1468 DPRINT1("64-bit bus address is not supported!\n");
1469 RequirementDescriptor
->Type
= CmResourceTypeBusNumber
;
1470 RequirementDescriptor
->ShareDisposition
= CmResourceShareShared
;
1471 RequirementDescriptor
->Flags
= 0;
1472 RequirementDescriptor
->u
.BusNumber
.MinBusNumber
= (ULONG
)addr64_data
->Minimum
;
1473 RequirementDescriptor
->u
.BusNumber
.MaxBusNumber
= (ULONG
)addr64_data
->Maximum
;
1474 RequirementDescriptor
->u
.BusNumber
.Length
= addr64_data
->AddressLength
;
1476 else if (addr64_data
->ResourceType
== ACPI_IO_RANGE
)
1478 RequirementDescriptor
->Type
= CmResourceTypePort
;
1479 RequirementDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1480 RequirementDescriptor
->Flags
= CM_RESOURCE_PORT_IO
;
1481 if (addr64_data
->Decode
== ACPI_POS_DECODE
)
1482 RequirementDescriptor
->Flags
|= CM_RESOURCE_PORT_POSITIVE_DECODE
;
1483 RequirementDescriptor
->u
.Port
.MinimumAddress
.QuadPart
= addr64_data
->Minimum
;
1484 RequirementDescriptor
->u
.Port
.MaximumAddress
.QuadPart
= addr64_data
->Maximum
;
1485 RequirementDescriptor
->u
.Port
.Length
= addr64_data
->AddressLength
;
1489 RequirementDescriptor
->Type
= CmResourceTypeMemory
;
1490 RequirementDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1491 RequirementDescriptor
->Flags
= 0;
1492 if (addr64_data
->Info
.Mem
.WriteProtect
== ACPI_READ_ONLY_MEMORY
)
1493 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
1495 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
1496 switch (addr64_data
->Info
.Mem
.Caching
)
1498 case ACPI_CACHABLE_MEMORY
: RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_CACHEABLE
; break;
1499 case ACPI_WRITE_COMBINING_MEMORY
: RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_COMBINEDWRITE
; break;
1500 case ACPI_PREFETCHABLE_MEMORY
: RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_PREFETCHABLE
; break;
1502 RequirementDescriptor
->u
.Memory
.MinimumAddress
.QuadPart
= addr64_data
->Minimum
;
1503 RequirementDescriptor
->u
.Memory
.MaximumAddress
.QuadPart
= addr64_data
->Maximum
;
1504 RequirementDescriptor
->u
.Memory
.Length
= addr64_data
->AddressLength
;
1506 RequirementDescriptor
++;
1509 case ACPI_RESOURCE_TYPE_MEMORY24
:
1511 ACPI_RESOURCE_MEMORY24
*mem24_data
= (ACPI_RESOURCE_MEMORY24
*) &resource
->Data
;
1512 RequirementDescriptor
->Option
= CurrentRes
? 0 : IO_RESOURCE_PREFERRED
;
1513 RequirementDescriptor
->Type
= CmResourceTypeMemory
;
1514 RequirementDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1515 RequirementDescriptor
->Flags
= CM_RESOURCE_MEMORY_24
;
1516 if (mem24_data
->WriteProtect
== ACPI_READ_ONLY_MEMORY
)
1517 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
1519 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
1520 RequirementDescriptor
->u
.Memory
.MinimumAddress
.QuadPart
= mem24_data
->Minimum
;
1521 RequirementDescriptor
->u
.Memory
.MaximumAddress
.QuadPart
= mem24_data
->Maximum
;
1522 RequirementDescriptor
->u
.Memory
.Length
= mem24_data
->AddressLength
;
1524 RequirementDescriptor
++;
1527 case ACPI_RESOURCE_TYPE_MEMORY32
:
1529 ACPI_RESOURCE_MEMORY32
*mem32_data
= (ACPI_RESOURCE_MEMORY32
*) &resource
->Data
;
1530 RequirementDescriptor
->Option
= CurrentRes
? 0 : IO_RESOURCE_PREFERRED
;
1531 RequirementDescriptor
->Type
= CmResourceTypeMemory
;
1532 RequirementDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1533 RequirementDescriptor
->Flags
= 0;
1534 if (mem32_data
->WriteProtect
== ACPI_READ_ONLY_MEMORY
)
1535 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
1537 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
1538 RequirementDescriptor
->u
.Memory
.MinimumAddress
.QuadPart
= mem32_data
->Minimum
;
1539 RequirementDescriptor
->u
.Memory
.MaximumAddress
.QuadPart
= mem32_data
->Maximum
;
1540 RequirementDescriptor
->u
.Memory
.Length
= mem32_data
->AddressLength
;
1542 RequirementDescriptor
++;
1545 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32
:
1547 ACPI_RESOURCE_FIXED_MEMORY32
*fixedmem32_data
= (ACPI_RESOURCE_FIXED_MEMORY32
*) &resource
->Data
;
1548 RequirementDescriptor
->Option
= CurrentRes
? 0 : IO_RESOURCE_PREFERRED
;
1549 RequirementDescriptor
->Type
= CmResourceTypeMemory
;
1550 RequirementDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
1551 RequirementDescriptor
->Flags
= 0;
1552 if (fixedmem32_data
->WriteProtect
== ACPI_READ_ONLY_MEMORY
)
1553 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_ONLY
;
1555 RequirementDescriptor
->Flags
|= CM_RESOURCE_MEMORY_READ_WRITE
;
1556 RequirementDescriptor
->u
.Memory
.MinimumAddress
.QuadPart
= fixedmem32_data
->Address
;
1557 RequirementDescriptor
->u
.Memory
.MaximumAddress
.QuadPart
= fixedmem32_data
->Address
;
1558 RequirementDescriptor
->u
.Memory
.Length
= fixedmem32_data
->AddressLength
;
1560 RequirementDescriptor
++;
1568 resource
= ACPI_NEXT_RESOURCE(resource
);
1570 ExFreePoolWithTag(Buffer
.Pointer
, 'IPCA');
1572 Irp
->IoStatus
.Information
= (ULONG_PTR
)RequirementsList
;
1574 return STATUS_SUCCESS
;
1578 Bus_PDO_QueryDeviceRelations(
1579 PPDO_DEVICE_DATA DeviceData
,
1583 Routine Description:
1585 The PnP Manager sends this IRP to gather information about
1586 devices with a relationship to the specified device.
1587 Bus drivers must handle this request for TargetDeviceRelation
1588 for their child devices (child PDOs).
1590 If a driver returns relations in response to this IRP,
1591 it allocates a DEVICE_RELATIONS structure from paged
1592 memory containing a count and the appropriate number of
1593 device object pointers. The PnP Manager frees the structure
1594 when it is no longer needed. If a driver replaces a
1595 DEVICE_RELATIONS structure allocated by another driver,
1596 it must free the previous structure.
1598 A driver must reference the PDO of any device that it
1599 reports in this IRP (ObReferenceObject). The PnP Manager
1600 removes the reference when appropriate.
1604 DeviceData - Pointer to the PDO's device extension.
1605 Irp - Pointer to the irp.
1614 PIO_STACK_LOCATION stack
;
1615 PDEVICE_RELATIONS deviceRelations
;
1620 stack
= IoGetCurrentIrpStackLocation (Irp
);
1622 switch (stack
->Parameters
.QueryDeviceRelations
.Type
) {
1624 case TargetDeviceRelation
:
1626 deviceRelations
= (PDEVICE_RELATIONS
) Irp
->IoStatus
.Information
;
1627 if (deviceRelations
) {
1629 // Only PDO can handle this request. Somebody above
1630 // is not playing by rule.
1632 ASSERTMSG("Someone above is handling TargetDeviceRelation", !deviceRelations
);
1635 deviceRelations
= (PDEVICE_RELATIONS
)
1636 ExAllocatePoolWithTag (PagedPool
,
1637 sizeof(DEVICE_RELATIONS
),
1639 if (!deviceRelations
) {
1640 status
= STATUS_INSUFFICIENT_RESOURCES
;
1645 // There is only one PDO pointer in the structure
1646 // for this relation type. The PnP Manager removes
1647 // the reference to the PDO when the driver or application
1648 // un-registers for notification on the device.
1651 deviceRelations
->Count
= 1;
1652 deviceRelations
->Objects
[0] = DeviceData
->Common
.Self
;
1653 ObReferenceObject(DeviceData
->Common
.Self
);
1655 status
= STATUS_SUCCESS
;
1656 Irp
->IoStatus
.Information
= (ULONG_PTR
) deviceRelations
;
1659 case BusRelations
: // Not handled by PDO
1660 case EjectionRelations
: // optional for PDO
1661 case RemovalRelations
: // // optional for PDO
1663 status
= Irp
->IoStatus
.Status
;
1670 Bus_PDO_QueryBusInformation(
1671 PPDO_DEVICE_DATA DeviceData
,
1675 Routine Description:
1677 The PnP Manager uses this IRP to request the type and
1678 instance number of a device's parent bus. Bus drivers
1679 should handle this request for their child devices (PDOs).
1683 DeviceData - Pointer to the PDO's device extension.
1684 Irp - Pointer to the irp.
1693 PPNP_BUS_INFORMATION busInfo
;
1697 busInfo
= ExAllocatePoolWithTag (PagedPool
, sizeof(PNP_BUS_INFORMATION
),
1700 if (busInfo
== NULL
) {
1701 return STATUS_INSUFFICIENT_RESOURCES
;
1704 busInfo
->BusTypeGuid
= GUID_ACPI_INTERFACE_STANDARD
;
1706 busInfo
->LegacyBusType
= InternalPowerBus
;
1708 busInfo
->BusNumber
= 0; //fixme
1710 Irp
->IoStatus
.Information
= (ULONG_PTR
)busInfo
;
1712 return STATUS_SUCCESS
;
1717 Bus_GetDeviceCapabilities(
1718 PDEVICE_OBJECT DeviceObject
,
1719 PDEVICE_CAPABILITIES DeviceCapabilities
1722 IO_STATUS_BLOCK ioStatus
;
1725 PDEVICE_OBJECT targetObject
;
1726 PIO_STACK_LOCATION irpStack
;
1732 // Initialize the capabilities that we will send down
1734 RtlZeroMemory( DeviceCapabilities
, sizeof(DEVICE_CAPABILITIES
) );
1735 DeviceCapabilities
->Size
= sizeof(DEVICE_CAPABILITIES
);
1736 DeviceCapabilities
->Version
= 1;
1737 DeviceCapabilities
->Address
= -1;
1738 DeviceCapabilities
->UINumber
= -1;
1741 // Initialize the event
1743 KeInitializeEvent( &pnpEvent
, NotificationEvent
, FALSE
);
1745 targetObject
= IoGetAttachedDeviceReference( DeviceObject
);
1750 pnpIrp
= IoBuildSynchronousFsdRequest(
1759 if (pnpIrp
== NULL
) {
1761 status
= STATUS_INSUFFICIENT_RESOURCES
;
1762 goto GetDeviceCapabilitiesExit
;
1767 // Pnp Irps all begin life as STATUS_NOT_SUPPORTED;
1769 pnpIrp
->IoStatus
.Status
= STATUS_NOT_SUPPORTED
;
1772 // Get the top of stack
1774 irpStack
= IoGetNextIrpStackLocation( pnpIrp
);
1777 // Set the top of stack
1779 RtlZeroMemory( irpStack
, sizeof(IO_STACK_LOCATION
) );
1780 irpStack
->MajorFunction
= IRP_MJ_PNP
;
1781 irpStack
->MinorFunction
= IRP_MN_QUERY_CAPABILITIES
;
1782 irpStack
->Parameters
.DeviceCapabilities
.Capabilities
= DeviceCapabilities
;
1787 status
= IoCallDriver( targetObject
, pnpIrp
);
1788 if (status
== STATUS_PENDING
) {
1791 // Block until the irp comes back.
1792 // Important thing to note here is when you allocate
1793 // the memory for an event in the stack you must do a
1794 // KernelMode wait instead of UserMode to prevent
1795 // the stack from getting paged out.
1798 KeWaitForSingleObject(
1805 status
= ioStatus
.Status
;
1809 GetDeviceCapabilitiesExit
:
1811 // Done with reference
1813 ObDereferenceObject( targetObject
);