reactos/drivers/bus/pci/pci.h

   1 /* $Id: pci.h,v 1.3 2003/11/14 17:13:24 weiden Exp $ */
   2
   3 #ifndef __PCI_H
   4 #define __PCI_H
   5
   6 #include <ddk/ntddk.h>
   7 #include <pcidef.h>
   8
   9
  10 typedef enum {
  11   pbtUnknown = 0,
  12   pbtType1,
  13   pbtType2,
  14 } PCI_BUS_TYPE;
  15
  16
  17 typedef struct _PCI_DEVICE
  18 {
  19   // Entry on device list
  20   LIST_ENTRY ListEntry;
  21   // Physical Device Object of device
  22   PDEVICE_OBJECT Pdo;
  23   // PCI configuration data
  24   PCI_COMMON_CONFIG PciConfig;
  25   // Flag used during enumeration to locate removed devices
  26   BOOLEAN RemovePending;
  27 } PCI_DEVICE, *PPCI_DEVICE;
  28
  29
  30 typedef enum {
  31   dsStopped,
  32   dsStarted,
  33   dsPaused,
  34   dsRemoved,
  35   dsSurpriseRemoved
  36 } PCI_DEVICE_STATE;
  37
  38
  39 typedef struct _COMMON_DEVICE_EXTENSION
  40 {
  41   // Pointer to device object, this device extension is associated with
  42   PDEVICE_OBJECT DeviceObject;
  43   // Wether this device extension is for an FDO or PDO
  44   BOOLEAN IsFDO;
  45   // Wether the device is removed
  46   BOOLEAN Removed;
  47   // Current device power state for the device
  48   DEVICE_POWER_STATE DevicePowerState;
  49 } __attribute((packed)) COMMON_DEVICE_EXTENSION, *PCOMMON_DEVICE_EXTENSION;
  50
  51 /* Physical Device Object device extension for a child device */
  52 typedef struct _PDO_DEVICE_EXTENSION
  53 {
  54   // Common device data
  55   COMMON_DEVICE_EXTENSION Common;
  56   // Device ID
  57   UNICODE_STRING DeviceID;
  58   // Instance ID
  59   UNICODE_STRING InstanceID;
  60   // Hardware IDs
  61   UNICODE_STRING HardwareIDs;
  62   // Compatible IDs
  63   UNICODE_STRING CompatibleIDs;
  64   // Textual description of device
  65   UNICODE_STRING DeviceText;
  66   // Textual description of device
  67   UNICODE_STRING DeviceTextLocation;
  68 } __attribute((packed)) PDO_DEVICE_EXTENSION, *PPDO_DEVICE_EXTENSION;
  69
  70 /* Functional Device Object device extension for the PCI driver device object */
  71 typedef struct _FDO_DEVICE_EXTENSION
  72 {
  73   // Common device data
  74   COMMON_DEVICE_EXTENSION Common;
  75   // Physical Device Object
  76   PDEVICE_OBJECT Pdo;
  77   // Current state of the driver
  78   PCI_DEVICE_STATE State;
  79   // Namespace device list
  80   LIST_ENTRY DeviceListHead;
  81   // Number of (not removed) devices in device list
  82   ULONG DeviceListCount;
  83   // Lock for namespace device list
  84   KSPIN_LOCK DeviceListLock;
  85   // PCI bus number
  86   ULONG BusNumber;
  87   // Lower device object
  88   PDEVICE_OBJECT Ldo;
  89 } __attribute((packed)) FDO_DEVICE_EXTENSION, *PFDO_DEVICE_EXTENSION;
  90
  91
  92 /* fdo.c */
  93
  94 NTSTATUS
  95 FdoPnpControl(
  96   PDEVICE_OBJECT DeviceObject,
  97   PIRP Irp);
  98
  99 NTSTATUS
 100 FdoPowerControl(
 101   PDEVICE_OBJECT DeviceObject,
 102   PIRP Irp);
 103
 104 /* pci.c */
 105
 106 extern PCI_BUS_TYPE PciBusConfigType;
 107
 108 PCI_BUS_TYPE
 109 PciGetBusConfigType(VOID);
 110
 111 ULONG
 112 PciGetBusData(ULONG BusNumber,
 113                ULONG SlotNumber,
 114                PVOID Buffer,
 115                ULONG Offset,
 116                ULONG Length);
 117
 118 BOOLEAN
 119 PciCreateUnicodeString(
 120   PUNICODE_STRING       Destination,
 121   PWSTR Source,
 122   POOL_TYPE PoolType);
 123
 124 /* pdo.c */
 125
 126 NTSTATUS
 127 PdoPnpControl(
 128   PDEVICE_OBJECT DeviceObject,
 129   PIRP Irp);
 130
 131 NTSTATUS
 132 PdoPowerControl(
 133   PDEVICE_OBJECT DeviceObject,
 134   PIRP Irp);
 135
 136 #endif  /*  __PCI_H  */