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176 lines
3.8 KiB
C
176 lines
3.8 KiB
C
#pragma once
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#include <ntifs.h>
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#include <wdmguid.h>
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#include <stdio.h>
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#include <ntddk.h>
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#define TAG_PCI '0ICP'
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typedef struct _PCI_DEVICE
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{
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// Entry on device list
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LIST_ENTRY ListEntry;
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// Physical Device Object of device
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PDEVICE_OBJECT Pdo;
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// PCI bus number
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ULONG BusNumber;
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// PCI slot number
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PCI_SLOT_NUMBER SlotNumber;
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// PCI configuration data
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PCI_COMMON_CONFIG PciConfig;
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// Flag used during enumeration to locate removed devices
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BOOLEAN RemovePending;
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} PCI_DEVICE, *PPCI_DEVICE;
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typedef enum {
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dsStopped,
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dsStarted,
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dsPaused,
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dsRemoved,
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dsSurpriseRemoved
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} PCI_DEVICE_STATE;
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typedef struct _COMMON_DEVICE_EXTENSION
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{
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// Pointer to device object, this device extension is associated with
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PDEVICE_OBJECT DeviceObject;
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// Wether this device extension is for an FDO or PDO
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BOOLEAN IsFDO;
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// Wether the device is removed
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BOOLEAN Removed;
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// Current device power state for the device
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DEVICE_POWER_STATE DevicePowerState;
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} COMMON_DEVICE_EXTENSION, *PCOMMON_DEVICE_EXTENSION;
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/* Physical Device Object device extension for a child device */
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typedef struct _PDO_DEVICE_EXTENSION
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{
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// Common device data
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COMMON_DEVICE_EXTENSION Common;
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// Functional device object
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PDEVICE_OBJECT Fdo;
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// Pointer to PCI Device informations
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PPCI_DEVICE PciDevice;
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// Device ID
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UNICODE_STRING DeviceID;
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// Instance ID
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UNICODE_STRING InstanceID;
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// Hardware IDs
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UNICODE_STRING HardwareIDs;
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// Compatible IDs
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UNICODE_STRING CompatibleIDs;
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// Textual description of device
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UNICODE_STRING DeviceDescription;
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// Textual description of device location
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UNICODE_STRING DeviceLocation;
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// Number of interfaces references
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LONG References;
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} PDO_DEVICE_EXTENSION, *PPDO_DEVICE_EXTENSION;
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/* Functional Device Object device extension for the PCI driver device object */
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typedef struct _FDO_DEVICE_EXTENSION
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{
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// Common device data
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COMMON_DEVICE_EXTENSION Common;
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// Entry on device list
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LIST_ENTRY ListEntry;
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// PCI bus number serviced by this FDO
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ULONG BusNumber;
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// Current state of the driver
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PCI_DEVICE_STATE State;
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// Namespace device list
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LIST_ENTRY DeviceListHead;
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// Number of (not removed) devices in device list
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ULONG DeviceListCount;
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// Lock for namespace device list
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KSPIN_LOCK DeviceListLock;
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// Lower device object
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PDEVICE_OBJECT Ldo;
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} FDO_DEVICE_EXTENSION, *PFDO_DEVICE_EXTENSION;
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/* Driver extension associated with PCI driver */
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typedef struct _PCI_DRIVER_EXTENSION
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{
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//
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LIST_ENTRY BusListHead;
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// Lock for namespace bus list
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KSPIN_LOCK BusListLock;
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} PCI_DRIVER_EXTENSION, *PPCI_DRIVER_EXTENSION;
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/* We need a global variable to get the driver extension,
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* because at least InterfacePciDevicePresent has no
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* other way to get it... */
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extern PPCI_DRIVER_EXTENSION DriverExtension;
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/* fdo.c */
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NTSTATUS
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FdoPnpControl(
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PDEVICE_OBJECT DeviceObject,
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PIRP Irp);
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NTSTATUS
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FdoPowerControl(
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PDEVICE_OBJECT DeviceObject,
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PIRP Irp);
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/* pci.c */
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NTSTATUS
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PciCreateDeviceIDString(
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PUNICODE_STRING DeviceID,
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PPCI_DEVICE Device);
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NTSTATUS
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PciCreateInstanceIDString(
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PUNICODE_STRING InstanceID,
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PPCI_DEVICE Device);
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NTSTATUS
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PciCreateHardwareIDsString(
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PUNICODE_STRING HardwareIDs,
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PPCI_DEVICE Device);
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NTSTATUS
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PciCreateCompatibleIDsString(
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PUNICODE_STRING HardwareIDs,
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PPCI_DEVICE Device);
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NTSTATUS
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PciCreateDeviceDescriptionString(
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PUNICODE_STRING DeviceDescription,
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PPCI_DEVICE Device);
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NTSTATUS
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PciCreateDeviceLocationString(
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PUNICODE_STRING DeviceLocation,
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PPCI_DEVICE Device);
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NTSTATUS
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PciDuplicateUnicodeString(
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IN ULONG Flags,
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IN PCUNICODE_STRING SourceString,
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OUT PUNICODE_STRING DestinationString);
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/* pdo.c */
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NTSTATUS
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PdoPnpControl(
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PDEVICE_OBJECT DeviceObject,
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PIRP Irp);
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NTSTATUS
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PdoPowerControl(
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PDEVICE_OBJECT DeviceObject,
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PIRP Irp);
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NTSTATUS
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NTAPI
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DriverEntry(
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IN PDRIVER_OBJECT DriverObject,
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IN PUNICODE_STRING RegistryPath);
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