https://git.reactos.org/?p=reactos.git;a=commitdiff;h=5b9929a07687d202ec3f8240af8579f7fc51538a
commit 5b9929a07687d202ec3f8240af8579f7fc51538a Author: Hervé Poussineau <[email protected]> AuthorDate: Mon Mar 16 20:58:53 2020 +0100 Commit: Hervé Poussineau <[email protected]> CommitDate: Fri Mar 20 22:40:11 2020 +0100 [ISAPNP] Detect devices only once ReadDataPort is started Also let kernel choose the read data port address, by using the resources given in IRP_MN_START_DEVICE. --- drivers/bus/isapnp/fdo.c | 24 ---------------------- drivers/bus/isapnp/hardware.c | 37 +++------------------------------ drivers/bus/isapnp/isapnp.h | 4 ++-- drivers/bus/isapnp/pdo.c | 48 ++++++++++++++++++++++++++++++++++++++++++- 4 files changed, 52 insertions(+), 61 deletions(-) diff --git a/drivers/bus/isapnp/fdo.c b/drivers/bus/isapnp/fdo.c index f232766b180..caa4b69c7e2 100644 --- a/drivers/bus/isapnp/fdo.c +++ b/drivers/bus/isapnp/fdo.c @@ -17,21 +17,9 @@ IsaFdoStartDevice( IN PIRP Irp, IN PIO_STACK_LOCATION IrpSp) { - NTSTATUS Status; - KIRQL OldIrql; - UNREFERENCED_PARAMETER(Irp); UNREFERENCED_PARAMETER(IrpSp); - KeAcquireSpinLock(&FdoExt->Lock, &OldIrql); - Status = IsaHwDetectReadDataPort(FdoExt); - KeReleaseSpinLock(&FdoExt->Lock, OldIrql); - - if (!NT_SUCCESS(Status)) - { - return Status; - } - FdoExt->Common.State = dsStarted; return STATUS_SUCCESS; @@ -44,21 +32,9 @@ IsaFdoQueryDeviceRelations( IN PIRP Irp, IN PIO_STACK_LOCATION IrpSp) { - NTSTATUS Status; - KIRQL OldIrql; - if (IrpSp->Parameters.QueryDeviceRelations.Type != BusRelations) return Irp->IoStatus.Status; - KeAcquireSpinLock(&FdoExt->Lock, &OldIrql); - Status = IsaHwFillDeviceList(FdoExt); - KeReleaseSpinLock(&FdoExt->Lock, OldIrql); - - if (!NT_SUCCESS(Status)) - { - return Status; - } - return IsaPnpFillDeviceRelations(FdoExt, Irp, TRUE); } diff --git a/drivers/bus/isapnp/hardware.c b/drivers/bus/isapnp/hardware.c index 77ca6c40b4b..4a3d49bb1e7 100644 --- a/drivers/bus/isapnp/hardware.c +++ b/drivers/bus/isapnp/hardware.c @@ -451,28 +451,6 @@ TryIsolate( return Csn; } -static -PUCHAR -Isolate(VOID) -{ - PUCHAR ReadPort; - - for (ReadPort = (PUCHAR)ISAPNP_READ_PORT_START; - (ULONG_PTR)ReadPort <= ISAPNP_READ_PORT_MAX; - ReadPort += ISAPNP_READ_PORT_STEP) - { - /* Avoid the NE2000 probe space */ - if ((ULONG_PTR)ReadPort >= 0x280 && - (ULONG_PTR)ReadPort <= 0x380) - continue; - - if (TryIsolate(ReadPort) > 0) - return ReadPort; - } - - return 0; -} - VOID DeviceActivation( IN PISAPNP_LOGICAL_DEVICE IsaDevice, @@ -557,19 +535,10 @@ ProbeIsaPnpBus( NTSTATUS NTAPI -IsaHwDetectReadDataPort( - IN PISAPNP_FDO_EXTENSION FdoExt) +IsaHwTryReadDataPort( + IN PUCHAR ReadDataPort) { - FdoExt->ReadDataPort = Isolate(); - if (!FdoExt->ReadDataPort) - { - DPRINT1("No read data port found\n"); - return STATUS_INSUFFICIENT_RESOURCES; - } - - DPRINT1("Detected read data port at 0x%p\n", FdoExt->ReadDataPort); - - return STATUS_SUCCESS; + return TryIsolate(ReadDataPort) > 0 ? STATUS_SUCCESS : STATUS_INSUFFICIENT_RESOURCES; } NTSTATUS diff --git a/drivers/bus/isapnp/isapnp.h b/drivers/bus/isapnp/isapnp.h index e62381b6760..4a68b5ee11d 100644 --- a/drivers/bus/isapnp/isapnp.h +++ b/drivers/bus/isapnp/isapnp.h @@ -106,8 +106,8 @@ IsaPdoPnp( /* hardware.c */ NTSTATUS NTAPI -IsaHwDetectReadDataPort( - IN PISAPNP_FDO_EXTENSION FdoExt); +IsaHwTryReadDataPort( + IN PUCHAR ReadDataPort); NTSTATUS NTAPI diff --git a/drivers/bus/isapnp/pdo.c b/drivers/bus/isapnp/pdo.c index 55ab0da804a..f0481119758 100644 --- a/drivers/bus/isapnp/pdo.c +++ b/drivers/bus/isapnp/pdo.c @@ -213,6 +213,52 @@ IsaPdoQueryResourceRequirements( return STATUS_SUCCESS; } +static +NTSTATUS +NTAPI +IsaPdoStartReadPort( + IN PISAPNP_FDO_EXTENSION FdoExt, + IN PIO_STACK_LOCATION IrpSp) +{ + PCM_RESOURCE_LIST ResourceList = IrpSp->Parameters.StartDevice.AllocatedResources; + NTSTATUS Status; + KIRQL OldIrql; + ULONG i; + + if (!ResourceList || ResourceList->Count != 1) + { + DPRINT1("No resource list (%p) or bad count (%d)\n", ResourceList, ResourceList ? ResourceList->Count : 0); + return STATUS_INSUFFICIENT_RESOURCES; + } + if (ResourceList->List[0].PartialResourceList.Version != 1 + || ResourceList->List[0].PartialResourceList.Revision != 1) + { + DPRINT1("Bad resource list version (%d.%d)\n", ResourceList->List[0].PartialResourceList.Version, ResourceList->List[0].PartialResourceList.Revision); + return STATUS_REVISION_MISMATCH; + } + for (i = 0; i < ResourceList->List[0].PartialResourceList.Count; i++) + { + PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptor = &ResourceList->List[0].PartialResourceList.PartialDescriptors[i]; + if (PartialDescriptor->Type == CmResourceTypePort) + { + PUCHAR ReadDataPort = (PUCHAR)PartialDescriptor->u.Port.Start.u.LowPart + 3; + if (PartialDescriptor->u.Port.Length > 1 && !FdoExt->ReadDataPort && NT_SUCCESS(IsaHwTryReadDataPort(ReadDataPort))) + { + FdoExt->ReadDataPort = ReadDataPort; + KeAcquireSpinLock(&FdoExt->Lock, &OldIrql); + Status = IsaHwFillDeviceList(FdoExt); + KeReleaseSpinLock(&FdoExt->Lock, OldIrql); + if (FdoExt->DeviceCount > 0) + { + IoInvalidateDeviceRelations(FdoExt->Pdo, BusRelations); + IoInvalidateDeviceRelations(FdoExt->DataPortPdo, RemovalRelations); + } + } + } + } + return Status; +} + NTSTATUS NTAPI IsaPdoPnp( @@ -228,7 +274,7 @@ IsaPdoPnp( if (PdoExt->IsaPnpDevice) Status = IsaHwActivateDevice(PdoExt->IsaPnpDevice); else - Status = STATUS_SUCCESS; + Status = IsaPdoStartReadPort(PdoExt->FdoExt, IrpSp); if (NT_SUCCESS(Status)) PdoExt->Common.State = dsStarted;
