mirror of
https://github.com/reactos/reactos.git
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161 lines
4.1 KiB
C
161 lines
4.1 KiB
C
/*
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* PROJECT: ReactOS ISA PnP Bus driver
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* FILE: pdo.c
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* PURPOSE: PDO-specific code
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* PROGRAMMERS: Cameron Gutman (cameron.gutman@reactos.org)
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*/
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#include <isapnp.h>
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#define NDEBUG
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#include <debug.h>
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NTSTATUS
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NTAPI
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IsaPdoQueryDeviceRelations(
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IN PISAPNP_PDO_EXTENSION PdoExt,
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IN PIRP Irp,
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IN PIO_STACK_LOCATION IrpSp)
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{
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PDEVICE_RELATIONS DeviceRelations;
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if (IrpSp->Parameters.QueryDeviceRelations.Type != TargetDeviceRelation)
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return Irp->IoStatus.Status;
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DeviceRelations = ExAllocatePool(PagedPool, sizeof(*DeviceRelations));
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if (!DeviceRelations)
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return STATUS_NO_MEMORY;
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DeviceRelations->Count = 1;
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DeviceRelations->Objects[0] = PdoExt->Common.Self;
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ObReferenceObject(PdoExt->Common.Self);
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Irp->IoStatus.Information = (ULONG_PTR)DeviceRelations;
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return STATUS_SUCCESS;
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}
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NTSTATUS
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NTAPI
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IsaPdoQueryCapabilities(
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IN PISAPNP_PDO_EXTENSION PdoExt,
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IN PIRP Irp,
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IN PIO_STACK_LOCATION IrpSp)
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{
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PDEVICE_CAPABILITIES DeviceCapabilities;
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PISAPNP_LOGICAL_DEVICE LogDev = PdoExt->IsaPnpDevice;
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DeviceCapabilities = IrpSp->Parameters.DeviceCapabilities.Capabilities;
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if (DeviceCapabilities->Version != 1)
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return STATUS_REVISION_MISMATCH;
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DeviceCapabilities->UniqueID = LogDev->SerialNumber != 0xffffffff;
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DeviceCapabilities->Address = LogDev->CSN;
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return STATUS_SUCCESS;
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}
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NTSTATUS
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NTAPI
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IsaPdoQueryId(
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IN PISAPNP_PDO_EXTENSION PdoExt,
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IN PIRP Irp,
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IN PIO_STACK_LOCATION IrpSp)
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{
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UNICODE_STRING EmptyString = RTL_CONSTANT_STRING(L"");
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PUNICODE_STRING Source;
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PWCHAR Buffer;
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switch (IrpSp->Parameters.QueryId.IdType)
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{
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case BusQueryDeviceID:
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DPRINT("IRP_MJ_PNP / IRP_MN_QUERY_ID / BusQueryDeviceID\n");
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Source = &PdoExt->DeviceID;
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break;
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case BusQueryHardwareIDs:
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DPRINT("IRP_MJ_PNP / IRP_MN_QUERY_ID / BusQueryHardwareIDs\n");
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Source = &PdoExt->HardwareIDs;
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break;
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case BusQueryCompatibleIDs:
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DPRINT("IRP_MJ_PNP / IRP_MN_QUERY_ID / BusQueryCompatibleIDs\n");
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Source = &EmptyString;
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break;
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case BusQueryInstanceID:
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DPRINT("IRP_MJ_PNP / IRP_MN_QUERY_ID / BusQueryInstanceID\n");
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Source = &PdoExt->InstanceID;
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break;
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default:
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DPRINT1("IRP_MJ_PNP / IRP_MN_QUERY_ID / unknown query id type 0x%lx\n",
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IrpSp->Parameters.QueryId.IdType);
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return Irp->IoStatus.Status;
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}
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Buffer = ExAllocatePool(PagedPool, Source->MaximumLength);
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if (!Buffer)
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return STATUS_NO_MEMORY;
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RtlCopyMemory(Buffer, Source->Buffer, Source->MaximumLength);
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Irp->IoStatus.Information = (ULONG_PTR)Buffer;
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return STATUS_SUCCESS;
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}
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NTSTATUS
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NTAPI
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IsaPdoPnp(
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IN PISAPNP_PDO_EXTENSION PdoExt,
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IN PIRP Irp,
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IN PIO_STACK_LOCATION IrpSp)
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{
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NTSTATUS Status = Irp->IoStatus.Status;
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switch (IrpSp->MinorFunction)
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{
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case IRP_MN_START_DEVICE:
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Status = IsaHwActivateDevice(PdoExt->IsaPnpDevice);
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if (NT_SUCCESS(Status))
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PdoExt->Common.State = dsStarted;
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break;
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case IRP_MN_STOP_DEVICE:
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Status = IsaHwDeactivateDevice(PdoExt->IsaPnpDevice);
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if (NT_SUCCESS(Status))
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PdoExt->Common.State = dsStopped;
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break;
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case IRP_MN_QUERY_DEVICE_RELATIONS:
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Status = IsaPdoQueryDeviceRelations(PdoExt, Irp, IrpSp);
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break;
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case IRP_MN_QUERY_CAPABILITIES:
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Status = IsaPdoQueryCapabilities(PdoExt, Irp, IrpSp);
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break;
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case IRP_MN_QUERY_RESOURCES:
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DPRINT1("IRP_MN_QUERY_RESOURCES is UNIMPLEMENTED!\n");
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break;
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case IRP_MN_QUERY_RESOURCE_REQUIREMENTS:
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DPRINT1("IRP_MN_QUERY_RESOURCE_REQUIREMENTS is UNIMPLEMENTED!\n");
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break;
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case IRP_MN_QUERY_ID:
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Status = IsaPdoQueryId(PdoExt, Irp, IrpSp);
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break;
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default:
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DPRINT1("Unknown PnP code: %x\n", IrpSp->MinorFunction);
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break;
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}
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Irp->IoStatus.Status = Status;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return Status;
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}
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