drivers/bus/pcix/arb/ar_busno.c

   1 /*
   2  * PROJECT:         ReactOS PCI Bus Driver
   3  * LICENSE:         BSD - See COPYING.ARM in the top level directory
   4  * FILE:            drivers/bus/pci/arb/ar_busno.c
   5  * PURPOSE:         Bus Number Arbitration
   6  * PROGRAMMERS:     ReactOS Portable Systems Group
   7  */
   8
   9 /* INCLUDES *******************************************************************/
  10
  11 #include <pci.h>
  12
  13 #define NDEBUG
  14 #include <debug.h>
  15
  16 /* GLOBALS ********************************************************************/
  17
  18 PCI_INTERFACE ArbiterInterfaceBusNumber =
  19 {
  20     &GUID_ARBITER_INTERFACE_STANDARD,
  21     sizeof(ARBITER_INTERFACE),
  22     0,
  23     0,
  24     PCI_INTERFACE_FDO,
  25     0,
  26     PciArb_BusNumber,
  27     arbusno_Constructor,
  28     arbusno_Initializer
  29 };
  30
  31 /* FUNCTIONS ******************************************************************/
  32
  33 NTSTATUS
  34 NTAPI
  35 arbusno_Initializer(IN PVOID Instance)
  36 {
  37     UNREFERENCED_PARAMETER(Instance);
  38     /* Not yet implemented */
  39     UNIMPLEMENTED;
  40     //while (TRUE);
  41     return STATUS_SUCCESS;
  42 }
  43
  44 NTSTATUS
  45 NTAPI
  46 arbusno_Constructor(IN PVOID DeviceExtension,
  47                     IN PVOID PciInterface,
  48                     IN PVOID InterfaceData,
  49                     IN USHORT Version,
  50                     IN USHORT Size,
  51                     IN PINTERFACE Interface)
  52 {
  53     PPCI_FDO_EXTENSION FdoExtension = (PPCI_FDO_EXTENSION)DeviceExtension;
  54     NTSTATUS Status;
  55     PAGED_CODE();
  56
  57     UNREFERENCED_PARAMETER(PciInterface);
  58     UNREFERENCED_PARAMETER(Version);
  59     UNREFERENCED_PARAMETER(Size);
  60     UNREFERENCED_PARAMETER(Interface);
  61
  62     /* Make sure it's the expected interface */
  63     if ((ULONG)InterfaceData != CmResourceTypeBusNumber)
  64     {
  65         /* Arbiter support must have been initialized first */
  66         if (FdoExtension->ArbitersInitialized)
  67         {
  68             /* Not yet implemented */
  69             UNIMPLEMENTED;
  70             while (TRUE);
  71         }
  72         else
  73         {
  74             /* No arbiters for this FDO */
  75             Status = STATUS_NOT_SUPPORTED;
  76         }
  77     }
  78     else
  79     {
  80         /* Not the right interface */
  81         Status = STATUS_INVALID_PARAMETER_5;
  82     }
  83
  84     /* Return the status */
  85     return Status;
  86 }
  87
  88 /* EOF */