reactos/ntoskrnl/include/internal/pci.h

   1 /*
   2  * PROJECT:         ReactOS Kernel
   3  * LICENSE:         GPL - See COPYING in the top level directory
   4  * FILE:            ntoskrnl/include/hal.h
   5  * PURPOSE:         Internal header for PCI Support
   6  * PROGRAMMERS:     Alex Ionescu (alex.ionescu@reactos.org)
   7  */
   8 #ifndef _PCI_
   9 #define _PCI_
  10
  11 //
  12 // PCI Type 1 Ports
  13 //
  14 #define PCI_TYPE1_ADDRESS_PORT      (PULONG)0xCF8
  15 #define PCI_TYPE1_DATA_PORT         0xCFC
  16
  17 //
  18 // PCI Type 2 Ports
  19 //
  20 #define PCI_TYPE2_CSE_PORT          (PUCHAR)0xCF8
  21 #define PCI_TYPE2_FORWARD_PORT      (PUCHAR)0xCFA
  22 #define PCI_TYPE2_ADDRESS_BASE      0xC
  23
  24 //
  25 // PCI Type 1 Configuration Register
  26 //
  27 typedef struct _PCI_TYPE1_CFG_BITS
  28 {
  29     union
  30     {
  31         struct
  32         {
  33             ULONG Reserved1:2;
  34             ULONG RegisterNumber:6;
  35             ULONG FunctionNumber:3;
  36             ULONG DeviceNumber:5;
  37             ULONG BusNumber:8;
  38             ULONG Reserved2:7;
  39             ULONG Enable:1;
  40         } bits;
  41
  42         ULONG AsULONG;
  43     } u;
  44 } PCI_TYPE1_CFG_BITS, *PPCI_TYPE1_CFG_BITS;
  45
  46 //
  47 // PCI Type 2 CSE Register
  48 //
  49 typedef struct _PCI_TYPE2_CSE_BITS
  50 {
  51     union
  52     {
  53         struct
  54         {
  55             UCHAR Enable:1;
  56             UCHAR FunctionNumber:3;
  57             UCHAR Key:4;
  58         } bits;
  59
  60         UCHAR AsUCHAR;
  61     } u;
  62 } PCI_TYPE2_CSE_BITS, PPCI_TYPE2_CSE_BITS;
  63
  64 //
  65 // PCI Type 2 Address Register
  66 //
  67 typedef struct _PCI_TYPE2_ADDRESS_BITS
  68 {
  69     union
  70     {
  71         struct
  72         {
  73             USHORT RegisterNumber:8;
  74             USHORT Agent:4;
  75             USHORT AddressBase:4;
  76         } bits;
  77
  78         USHORT AsUSHORT;
  79     } u;
  80 } PCI_TYPE2_ADDRESS_BITS, *PPCI_TYPE2_ADDRESS_BITS;
  81
  82 //
  83 // PCI Registry Information
  84 //
  85 typedef struct _PCI_REGISTRY_INFO
  86 {
  87     UCHAR MajorRevision;
  88     UCHAR MinorRevision;
  89     UCHAR NoBuses;
  90     UCHAR HardwareMechanism;
  91 } PCI_REGISTRY_INFO, *PPCI_REGISTRY_INFO;
  92
  93 //
  94 // PCI Card Descriptor in Registry
  95 //
  96 typedef struct _PCI_CARD_DESCRIPTOR
  97 {
  98     ULONG Flags;
  99     USHORT VendorID;
 100     USHORT DeviceID;
 101     USHORT RevisionID;
 102     USHORT SubsystemVendorID;
 103     USHORT SubsystemID;
 104     USHORT Reserved;
 105 } PCI_CARD_DESCRIPTOR, *PPCI_CARD_DESCRIPTOR;
 106
 107 #endif