reactos/ntoskrnl/include/internal/hal.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 the I/O HAL Functions (Fstub)
   6  * PROGRAMMERS:     Alex Ionescu (alex.ionescu@reactos.org)
   7  */
   8
   9 #pragma once
  10
  11 //
  12 // Default implementations of HAL dispatch table
  13 //
  14 VOID
  15 FASTCALL
  16 xHalExamineMBR(IN PDEVICE_OBJECT DeviceObject,
  17                IN ULONG SectorSize,
  18                IN ULONG MbrTypeIdentifier,
  19                OUT PVOID *MbrBuffer);
  20
  21 VOID
  22 FASTCALL
  23 xHalIoAssignDriveLetters(IN PLOADER_PARAMETER_BLOCK LoaderBlock,
  24                          IN PSTRING NtDeviceName,
  25                          OUT PUCHAR NtSystemPath,
  26                          OUT PSTRING NtSystemPathString);
  27
  28 NTSTATUS
  29 FASTCALL
  30 xHalIoReadPartitionTable(IN PDEVICE_OBJECT DeviceObject,
  31                          IN ULONG SectorSize,
  32                          IN BOOLEAN ReturnRecognizedPartitions,
  33                          IN OUT PDRIVE_LAYOUT_INFORMATION *PartitionBuffer);
  34
  35 NTSTATUS
  36 FASTCALL
  37 xHalIoSetPartitionInformation(IN PDEVICE_OBJECT DeviceObject,
  38                               IN ULONG SectorSize,
  39                               IN ULONG PartitionNumber,
  40                               IN ULONG PartitionType);
  41
  42 NTSTATUS
  43 FASTCALL
  44 xHalIoWritePartitionTable(IN PDEVICE_OBJECT DeviceObject,
  45                           IN ULONG SectorSize,
  46                           IN ULONG SectorsPerTrack,
  47                           IN ULONG NumberOfHeads,
  48                           IN PDRIVE_LAYOUT_INFORMATION PartitionBuffer);
  49
  50 VOID
  51 NTAPI
  52 xHalHaltSystem(
  53     VOID
  54 );
  55
  56 VOID
  57 NTAPI
  58 xHalEndOfBoot(
  59     VOID
  60 );
  61
  62 VOID
  63 NTAPI
  64 xHalSetWakeEnable(
  65     IN BOOLEAN Enable
  66 );
  67
  68 UCHAR
  69 NTAPI
  70 xHalVectorToIDTEntry(
  71     IN ULONG Vector
  72 );
  73
  74 NTSTATUS
  75 NTAPI
  76 xHalGetInterruptTranslator(IN INTERFACE_TYPE ParentInterfaceType,
  77                            IN ULONG ParentBusNumber,
  78                            IN INTERFACE_TYPE BridgeInterfaceType,
  79                            IN USHORT Size,
  80                            IN USHORT Version,
  81                            OUT PTRANSLATOR_INTERFACE Translator,
  82                            OUT PULONG BridgeBusNumber);
  83
  84
  85 //
  86 // Various offsets in the boot record
  87 //
  88 #define PARTITION_TABLE_OFFSET                      (0x1BE / 2)
  89 #define BOOT_SIGNATURE_OFFSET                       ((0x200 / 2) - 1)
  90 #define BOOT_RECORD_RESERVED                        0x1BC
  91 #define BOOT_RECORD_SIGNATURE                       0xAA55
  92 #define NUM_PARTITION_TABLE_ENTRIES                 4
  93
  94 //
  95 // Helper Macros
  96 //
  97 #define GET_STARTING_SECTOR(p)                      \
  98     ((ULONG)(p->StartingSectorLsb0) +               \
  99      (ULONG)(p->StartingSectorLsb1 << 8 ) +         \
 100      (ULONG)(p->StartingSectorMsb0 << 16) +         \
 101      (ULONG)(p->StartingSectorMsb1 << 24))
 102
 103 #define GET_ENDING_S_OF_CHS(p)                      \
 104     ((UCHAR)(p->EndingCylinderLsb & 0x3F))
 105
 106 #define GET_PARTITION_LENGTH(p)                     \
 107     ((ULONG)(p->PartitionLengthLsb0) +              \
 108      (ULONG)(p->PartitionLengthLsb1 << 8) +         \
 109      (ULONG)(p->PartitionLengthMsb0 << 16) +        \
 110      (ULONG)(p->PartitionLengthMsb1 << 24))
 111
 112 //
 113 // Structure describing a partition
 114 //
 115 typedef struct _PARTITION_DESCRIPTOR
 116 {
 117     UCHAR ActiveFlag;
 118     UCHAR StartingTrack;
 119     UCHAR StartingCylinderLsb;
 120     UCHAR StartingCylinderMsb;
 121     UCHAR PartitionType;
 122     UCHAR EndingTrack;
 123     UCHAR EndingCylinderLsb;
 124     UCHAR EndingCylinderMsb;
 125     UCHAR StartingSectorLsb0;
 126     UCHAR StartingSectorLsb1;
 127     UCHAR StartingSectorMsb0;
 128     UCHAR StartingSectorMsb1;
 129     UCHAR PartitionLengthLsb0;
 130     UCHAR PartitionLengthLsb1;
 131     UCHAR PartitionLengthMsb0;
 132     UCHAR PartitionLengthMsb1;
 133 } PARTITION_DESCRIPTOR, *PPARTITION_DESCRIPTOR;
 134
 135 //
 136 // Structure describing a boot sector
 137 //
 138 typedef struct _BOOT_SECTOR_INFO
 139 {
 140     UCHAR JumpByte[1];
 141     UCHAR Ignore1[2];
 142     UCHAR OemData[8];
 143     UCHAR BytesPerSector[2];
 144     UCHAR Ignore2[6];
 145     UCHAR NumberOfSectors[2];
 146     UCHAR MediaByte[1];
 147     UCHAR Ignore3[2];
 148     UCHAR SectorsPerTrack[2];
 149     UCHAR NumberOfHeads[2];
 150 } BOOT_SECTOR_INFO, *PBOOT_SECTOR_INFO;
 151
 152 //
 153 // Partition Table and Disk Layout
 154 //
 155 typedef struct _PARTITION_TABLE
 156 {
 157     PARTITION_INFORMATION PartitionEntry[4];
 158 } PARTITION_TABLE, *PPARTITION_TABLE;
 159
 160 typedef struct _DISK_LAYOUT
 161 {
 162     ULONG TableCount;
 163     ULONG Signature;
 164     PARTITION_TABLE PartitionTable[1];
 165 } DISK_LAYOUT, *PDISK_LAYOUT;
 166
 167 //
 168 // Partition Table Entry
 169 //
 170 typedef struct _PTE
 171 {
 172     UCHAR ActiveFlag;
 173     UCHAR StartingTrack;
 174     USHORT StartingCylinder;
 175     UCHAR PartitionType;
 176     UCHAR EndingTrack;
 177     USHORT EndingCylinder;
 178     ULONG StartingSector;
 179     ULONG PartitionLength;
 180 } PTE, *PPTE;