https://git.reactos.org/?p=reactos.git;a=commitdiff;h=e19595572aa04724ee00788bb76a0328d2586700
commit e19595572aa04724ee00788bb76a0328d2586700 Author: Dmitry Borisov <[email protected]> AuthorDate: Thu Mar 4 18:47:34 2021 +0600 Commit: Dmitry Borisov <[email protected]> CommitDate: Sun Jun 20 19:24:25 2021 +0600 [ISAPNP] Implement querying bus information --- drivers/bus/isapnp/isapnp.c | 2 ++ drivers/bus/isapnp/isapnp.h | 4 ++++ drivers/bus/isapnp/pdo.c | 30 +++++++++++++++++++++++++++++- 3 files changed, 35 insertions(+), 1 deletion(-) diff --git a/drivers/bus/isapnp/isapnp.c b/drivers/bus/isapnp/isapnp.c index daa53f64758..c477fecf767 100644 --- a/drivers/bus/isapnp/isapnp.c +++ b/drivers/bus/isapnp/isapnp.c @@ -683,6 +683,7 @@ IsaAddDevice( PDEVICE_OBJECT Fdo; PISAPNP_FDO_EXTENSION FdoExt; NTSTATUS Status; + static ULONG BusNumber = 0; PAGED_CODE(); @@ -708,6 +709,7 @@ IsaAddDevice( FdoExt->Common.IsFdo = TRUE; FdoExt->Common.State = dsStopped; FdoExt->DriverObject = DriverObject; + FdoExt->BusNumber = BusNumber++; FdoExt->Pdo = PhysicalDeviceObject; FdoExt->Ldo = IoAttachDeviceToDeviceStack(Fdo, PhysicalDeviceObject); diff --git a/drivers/bus/isapnp/isapnp.h b/drivers/bus/isapnp/isapnp.h index d22037bbb90..4eb7fb4e19b 100644 --- a/drivers/bus/isapnp/isapnp.h +++ b/drivers/bus/isapnp/isapnp.h @@ -14,6 +14,9 @@ #include <section_attribs.h> #include "isapnphw.h" +#include <initguid.h> +#include <wdmguid.h> + #ifdef __cplusplus extern "C" { #endif @@ -73,6 +76,7 @@ typedef struct _ISAPNP_FDO_EXTENSION PDEVICE_OBJECT Ldo; PDEVICE_OBJECT Pdo; PDEVICE_OBJECT ReadPortPdo; + ULONG BusNumber; KEVENT DeviceSyncEvent; LIST_ENTRY DeviceListHead; ULONG DeviceCount; diff --git a/drivers/bus/isapnp/pdo.c b/drivers/bus/isapnp/pdo.c index 1227f7cf22b..1fae349f9e0 100644 --- a/drivers/bus/isapnp/pdo.c +++ b/drivers/bus/isapnp/pdo.c @@ -483,6 +483,31 @@ IsaPdoRepeatRequest( return STATUS_PENDING; } +static +CODE_SEG("PAGE") +NTSTATUS +IsaPdoQueryBusInformation( + _In_ PISAPNP_PDO_EXTENSION PdoExt, + _Inout_ PIRP Irp) +{ + PPNP_BUS_INFORMATION BusInformation; + + PAGED_CODE(); + + BusInformation = ExAllocatePoolWithTag(PagedPool, + sizeof(PNP_BUS_INFORMATION), + TAG_ISAPNP); + if (!BusInformation) + return STATUS_INSUFFICIENT_RESOURCES; + + BusInformation->BusTypeGuid = GUID_BUS_TYPE_ISAPNP; + BusInformation->LegacyBusType = Isa; + BusInformation->BusNumber = PdoExt->FdoExt->BusNumber; + + Irp->IoStatus.Information = (ULONG_PTR)BusInformation; + return STATUS_SUCCESS; +} + CODE_SEG("PAGE") NTSTATUS IsaPdoPnp( @@ -544,6 +569,10 @@ IsaPdoPnp( Status = IsaReadPortQueryId(Irp, IrpSp); break; + case IRP_MN_QUERY_BUS_INFORMATION: + Status = IsaPdoQueryBusInformation(PdoExt, Irp); + break; + case IRP_MN_QUERY_REMOVE_DEVICE: case IRP_MN_REMOVE_DEVICE: case IRP_MN_CANCEL_REMOVE_DEVICE: @@ -559,7 +588,6 @@ IsaPdoPnp( case IRP_MN_WRITE_CONFIG: case IRP_MN_EJECT: case IRP_MN_SET_LOCK: - case IRP_MN_QUERY_BUS_INFORMATION: case IRP_MN_DEVICE_USAGE_NOTIFICATION: return IsaPdoRepeatRequest(PdoExt, Irp, TRUE);
