dist/inc/efilib.h

/*	$NetBSD: efilib.h,v 1.3 2021/09/30 19:02:47 jmcneill Exp $	*/

#ifndef _EFILIB_INCLUDE_
#define _EFILIB_INCLUDE_

/*++

Copyright (c) 2000  Intel Corporation

Module Name:

    efilib.h

Abstract:

    EFI library functions


Revision History

--*/

#include "efidebug.h"
#include "efipart.h"
#if defined(_M_X64) || defined(__x86_64__) || defined(__amd64__)
#include "x86_64/efilibplat.h"
#elif defined(_M_IX86) || defined(__i386__)
#include "ia32/efilibplat.h"
#elif defined(_M_IA64) || defined(__ia64__)
#include "ia64/efilibplat.h"
#elif defined (_M_ARM64) || defined(__aarch64__)
#include "aarch64/efilibplat.h"
#elif defined (_M_ARM) || defined(__arm__)
#include "arm/efilibplat.h"
#elif defined (_M_MIPS64) || defined(__mips64__)
#include "mips64el/efilibplat.h"
#elif defined (__riscv) && __riscv_xlen == 64
#include "riscv64/efilibplat.h"
#endif
#include "efilink.h"
#include "efirtlib.h"
#include "efistdarg.h"
#include "pci22.h"
#include "libsmbios.h"

//
// Public read-only data in the EFI library
//

extern EFI_SYSTEM_TABLE         *ST;
#define gST                      ST
extern EFI_BOOT_SERVICES        *BS;
#define gBS                      BS
extern EFI_RUNTIME_SERVICES     *RT;
#define gRT                      RT

extern EFI_GUID gEfiDevicePathProtocolGuid;
#define DevicePathProtocol gEfiDevicePathProtocolGuid
extern EFI_GUID gEfiDevicePathToTextProtocolGuid;
#define DevicePathToTextProtocol gEfiDevicePathToTextProtocolGuid
extern EFI_GUID gEfiDevicePathFromTextProtocolGuid;
#define DevicePathFromTextProtocol gEfiDevicePathFromTextProtocolGuid
extern EFI_GUID gEfiDevicePathUtilitiesProtocolGuid;
#define DevicePathUtilitiesProtocol gEfiDevicePathUtilitiesProtocolGuid
extern EFI_GUID gEfiLoadedImageProtocolGuid;
#define LoadedImageProtocol gEfiLoadedImageProtocolGuid
extern EFI_GUID gEfiSimpleTextInProtocolGuid;
#define TextInProtocol gEfiSimpleTextInProtocolGuid
extern EFI_GUID gEfiSimpleTextOutProtocolGuid;
#define TextOutProtocol gEfiSimpleTextOutProtocolGuid
extern EFI_GUID gEfiGraphicsOutputProtocolGuid;
#define GraphicsOutputProtocol gEfiGraphicsOutputProtocolGuid
extern EFI_GUID gEfiEdidDiscoveredProtocolGuid;
#define EdidDiscoveredProtocol gEfiEdidDiscoveredProtocolGuid
extern EFI_GUID gEfiEdidActiveProtocolGuid;
#define EdidActiveProtocol gEfiEdidActiveProtocolGuid
extern EFI_GUID gEfiEdidOverrideProtocolGuid;
#define EdidOverrideProtocol gEfiEdidOverrideProtocolGuid
extern EFI_GUID gEfiBlockIoProtocolGuid;
#define BlockIoProtocol gEfiBlockIoProtocolGuid
extern EFI_GUID gEfiBlockIo2ProtocolGuid;
#define BlockIo2Protocol gEfiBlockIo2ProtocolGuid
extern EFI_GUID gEfiDiskIoProtocolGuid;
#define DiskIoProtocol gEfiDiskIoProtocolGuid
extern EFI_GUID gEfiDiskIo2ProtocolGuid;
#define DiskIo2Protocol gEfiDiskIo2ProtocolGuid
extern EFI_GUID gEfiSimpleFileSystemProtocolGuid;
#define FileSystemProtocol gEfiSimpleFileSystemProtocolGuid
extern EFI_GUID gEfiLoadFileProtocolGuid;
#define LoadFileProtocol gEfiLoadFileProtocolGuid
extern EFI_GUID gEfiDeviceIoProtocolGuid;
#define DeviceIoProtocol gEfiDeviceIoProtocolGuid
extern EFI_GUID VariableStoreProtocol;
extern EFI_GUID LegacyBootProtocol;
extern EFI_GUID gEfiUnicodeCollationProtocolGuid;
#define UnicodeCollationProtocol gEfiUnicodeCollationProtocolGuid
extern EFI_GUID gEfiSerialIoProtocolGuid;
#define SerialIoProtocol gEfiSerialIoProtocolGuid
extern EFI_GUID VgaClassProtocol;
extern EFI_GUID TextOutSpliterProtocol;
extern EFI_GUID ErrorOutSpliterProtocol;
extern EFI_GUID TextInSpliterProtocol;
extern EFI_GUID gEfiSimpleNetworkProtocolGuid;
#define SimpleNetworkProtocol gEfiSimpleNetworkProtocolGuid
extern EFI_GUID gEfiPxeBaseCodeProtocolGuid;
#define PxeBaseCodeProtocol gEfiPxeBaseCodeProtocolGuid
extern EFI_GUID gEfiPxeBaseCodeCallbackProtocolGuid;
#define PxeCallbackProtocol gEfiPxeBaseCodeCallbackProtocolGuid
extern EFI_GUID gEfiNetworkInterfaceIdentifierProtocolGuid;
#define NetworkInterfaceIdentifierProtocol gEfiNetworkInterfaceIdentifierProtocolGuid
extern EFI_GUID gEFiUiInterfaceProtocolGuid;
#define UiProtocol gEFiUiInterfaceProtocolGuid
extern EFI_GUID InternalShellProtocol;
extern EFI_GUID gEfiPciIoProtocolGuid;
#define PciIoProtocol gEfiPciIoProtocolGuid
extern EFI_GUID gEfiPciRootBridgeIoProtocolGuid;
extern EFI_GUID gEfiDriverBindingProtocolGuid;
#define DriverBindingProtocol gEfiDriverBindingProtocolGuid
extern EFI_GUID gEfiComponentNameProtocolGuid;
#define ComponentNameProtocol gEfiComponentNameProtocolGuid
extern EFI_GUID gEfiComponentName2ProtocolGuid;
#define ComponentName2Protocol gEfiComponentName2ProtocolGuid
extern EFI_GUID gEfiHashProtocolGuid;
#define HashProtocol gEfiHashProtocolGuid
extern EFI_GUID gEfiPlatformDriverOverrideProtocolGuid;
#define PlatformDriverOverrideProtocol gEfiPlatformDriverOverrideProtocolGuid
extern EFI_GUID gEfiBusSpecificDriverOverrideProtocolGuid;
#define BusSpecificDriverOverrideProtocol gEfiBusSpecificDriverOverrideProtocolGuid
extern EFI_GUID gEfiDriverFamilyOverrideProtocolGuid;
#define DriverFamilyOverrideProtocol gEfiDriverFamilyOverrideProtocolGuid
extern EFI_GUID gEfiEbcProtocolGuid;

extern EFI_GUID gEfiGlobalVariableGuid;
#define EfiGlobalVariable gEfiGlobalVariableGuid
extern EFI_GUID gEfiFileInfoGuid;
#define GenericFileInfo gEfiFileInfoGuid
extern EFI_GUID gEfiFileSystemInfoGuid;
#define FileSystemInfo gEfiFileSystemInfoGuid
extern EFI_GUID gEfiFileSystemVolumeLabelInfoIdGuid;
#define FileSystemVolumeLabelInfo gEfiFileSystemVolumeLabelInfoIdGuid
extern EFI_GUID gEfiPcAnsiGuid;
#define PcAnsiProtocol gEfiPcAnsiGuid
extern EFI_GUID gEfiVT100Guid;
#define Vt100Protocol gEfiVT100Guid
extern EFI_GUID gEfiVT100PlusGuid;
extern EFI_GUID gEfiVTUTF8Guid;

extern EFI_GUID NullGuid;
extern EFI_GUID UnknownDevice;

extern EFI_GUID EfiPartTypeSystemPartitionGuid;
extern EFI_GUID EfiPartTypeLegacyMbrGuid;

extern EFI_GUID MpsTableGuid;
extern EFI_GUID AcpiTableGuid;
extern EFI_GUID SMBIOSTableGuid;
extern EFI_GUID SMBIOS3TableGuid;
extern EFI_GUID SalSystemTableGuid;
extern EFI_GUID EfiDtbTableGuid;

extern EFI_GUID SimplePointerProtocol;
extern EFI_GUID AbsolutePointerProtocol;

extern EFI_GUID gEfiDebugImageInfoTableGuid;
extern EFI_GUID gEfiDebugSupportProtocolGuid;

extern EFI_GUID SimpleTextInputExProtocol;

extern EFI_GUID ShellProtocolGuid;
extern EFI_GUID ShellParametersProtocolGuid;
extern EFI_GUID ShellDynamicCommandProtocolGuid;

//
// EFI Variable strings
//
#define LOAD_OPTION_ACTIVE      0x00000001

#define VarLanguageCodes       L"LangCodes"
#define VarLanguage            L"Lang"
#define VarTimeout             L"Timeout"
#define VarConsoleInp          L"ConIn"
#define VarConsoleOut          L"ConOut"
#define VarErrorOut            L"ErrOut"
#define VarBootOption          L"Boot%04x"
#define VarBootOrder           L"BootOrder"
#define VarBootNext            L"BootNext"
#define VarBootCurrent         L"BootCurrent"
#define VarDriverOption        L"Driver%04x"
#define VarDriverOrder         L"DriverOrder"
#define VarConsoleInpDev       L"ConInDev"
#define VarConsoleOutDev       L"ConOutDev"
#define VarErrorOutDev         L"ErrOutDev"

#define LanguageCodeEnglish    "eng"

extern EFI_DEVICE_PATH RootDevicePath[];
extern EFI_DEVICE_PATH EndDevicePath[];
extern EFI_DEVICE_PATH EndInstanceDevicePath[];

//
// Other public data in the EFI library
//

extern EFI_MEMORY_TYPE PoolAllocationType;

//
// STATIC - Name is internal to the module
// INTERNAL - Name is internal to the component (i.e., directory)
// BOOTSERVCE - Name of a boot service function
//

#define STATIC
#define INTERNAL
#define BOOTSERVICE

//
// Prototypes
//

VOID
InitializeLib (
    IN EFI_HANDLE           ImageHandle,
    IN EFI_SYSTEM_TABLE     *SystemTable
    );

VOID
InitializeUnicodeSupport (
    CHAR8 *LangCode
    );

VOID
EFIDebugVariable (
    VOID
    );

VOID
Exit(
    IN EFI_STATUS   ExitStatus,
    IN UINTN        ExitDataSize,
    IN CHAR16       *ExitData OPTIONAL
    );

INTN
GetShellArgcArgv(
    EFI_HANDLE ImageHandle,
    CHAR16 **Argv[]  /* Statically allocated */
    );

VOID
SetCrc (
    IN OUT EFI_TABLE_HEADER *Hdr
    );

VOID
SetCrcAltSize (
    IN UINTN                 Size,
    IN OUT EFI_TABLE_HEADER *Hdr
    );

BOOLEAN
CheckCrc (
    IN UINTN                 MaxSize,
    IN OUT EFI_TABLE_HEADER *Hdr
    );

BOOLEAN
CheckCrcAltSize (
    IN UINTN                 MaxSize,
    IN UINTN                 Size,
    IN OUT EFI_TABLE_HEADER *Hdr
    );

UINT32
CalculateCrc (
    UINT8 *pt,
    UINTN Size
    );

VOID
ZeroMem (
    IN VOID     *Buffer,
    IN UINTN     Size
    );

VOID
SetMem (
    IN VOID     *Buffer,
    IN UINTN    Size,
    IN UINT8    Value
    );

VOID
CopyMem (
    IN VOID     *Dest,
    IN CONST VOID     *Src,
    IN UINTN    len
    );

INTN
CompareMem (
    IN CONST VOID     *Dest,
    IN CONST VOID     *Src,
    IN UINTN    len
    );

INTN
StrCmp (
    IN CONST CHAR16   *s1,
    IN CONST CHAR16   *s2
    );

INTN
StrnCmp (
    IN CONST CHAR16   *s1,
    IN CONST CHAR16   *s2,
    IN UINTN    len
    );

INTN
StriCmp (
    IN CONST CHAR16   *s1,
    IN CONST CHAR16   *s2
    );

VOID
StrLwr (
    IN CHAR16   *Str
    );

VOID
StrUpr (
    IN CHAR16   *Str
    );

VOID
StrCpy (
    IN CHAR16   *Dest,
    IN CONST CHAR16    *Src
    );

VOID
StrnCpy (
    IN CHAR16   *Dest,
    IN CONST CHAR16    *Src,
    IN UINTN     Len
    );

CHAR16 *
StpCpy (
    IN CHAR16   *Dest,
    IN CONST CHAR16    *Src
    );

CHAR16 *
StpnCpy (
    IN CHAR16   *Dest,
    IN CONST CHAR16    *Src,
    IN UINTN     Len
    );

VOID
StrCat (
    IN CHAR16   *Dest,
    IN CONST CHAR16   *Src
    );

VOID
StrnCat (
    IN CHAR16   *Dest,
    IN CONST CHAR16   *Src,
    IN UINTN     Len
    );

UINTN
StrLen (
    IN CONST CHAR16   *s1
    );

UINTN
StrnLen (
    IN CONST CHAR16   *s1,
    IN UINTN           Len
    );

UINTN
StrSize (
    IN CONST CHAR16   *s1
    );

CHAR16 *
StrDuplicate (
    IN CONST CHAR16   *Src
    );

UINTN
strlena (
    IN CONST CHAR8    *s1
    );

UINTN
strcmpa (
    IN CONST CHAR8    *s1,
    IN CONST CHAR8    *s2
    );

UINTN
strncmpa (
    IN CONST CHAR8    *s1,
    IN CONST CHAR8    *s2,
    IN UINTN    len
    );

UINTN
xtoi (
    CONST CHAR16      *str
    );

UINTN
Atoi (
    CONST CHAR16  *str
    );

BOOLEAN
MetaMatch (
    IN CHAR16   *String,
    IN CHAR16   *Pattern
    );

BOOLEAN
MetaiMatch (
    IN CHAR16   *String,
    IN CHAR16   *Pattern
    );

UINT64
LShiftU64 (
    IN UINT64   Operand,
    IN UINTN    Count
    );

UINT64
RShiftU64 (
    IN UINT64   Operand,
    IN UINTN    Count
    );

UINT64
MultU64x32 (
    IN UINT64   Multiplicand,
    IN UINTN    Multiplier
    );

UINT64
DivU64x32 (
    IN UINT64   Dividend,
    IN UINTN    Divisor,
    OUT UINTN   *Remainder OPTIONAL
    );

VOID
InitializeLock (
    IN OUT FLOCK    *Lock,
    IN EFI_TPL  Priority
    );

VOID
AcquireLock (
    IN FLOCK    *Lock
    );

VOID
ReleaseLock (
    IN FLOCK    *Lock
    );


INTN
CompareGuid(
    IN EFI_GUID     *Guid1,
    IN EFI_GUID     *Guid2
    );

VOID *
AllocatePool (
    IN UINTN     Size
    );

VOID *
AllocateZeroPool (
    IN UINTN     Size
    );

VOID *
ReallocatePool (
    IN VOID                 *OldPool,
    IN UINTN                OldSize,
    IN UINTN                NewSize
    );

VOID
FreePool (
    IN VOID     *p
    );


VOID
Output (
    IN CHAR16   *Str
    );

VOID
Input (
    IN CHAR16   *Prompt OPTIONAL,
    OUT CHAR16  *InStr,
    IN UINTN    StrLen
    );

VOID
IInput (
    IN SIMPLE_TEXT_OUTPUT_INTERFACE     *ConOut,
    IN SIMPLE_INPUT_INTERFACE           *ConIn,
    IN CHAR16                           *Prompt OPTIONAL,
    OUT CHAR16                          *InStr,
    IN UINTN                            StrLen
    );

UINTN
Print (
    IN CONST CHAR16   *fmt,
    ...
    );

UINTN
VPrint (
    IN CONST CHAR16   *fmt,
    va_list           args
    );

UINTN
UnicodeSPrint (
    OUT CHAR16        *Str,
    IN UINTN          StrSize,
    IN CONST CHAR16   *fmt,
    ...
    );

UINTN
UnicodeVSPrint (
    OUT CHAR16        *Str,
    IN UINTN          StrSize,
    IN CONST CHAR16   *fmt,
    va_list           args
    );

CHAR16 *
VPoolPrint (
    IN CONST CHAR16     *fmt,
    va_list             args
    );

CHAR16 *
PoolPrint (
    IN CONST CHAR16     *fmt,
    ...
    );

typedef struct {
    CHAR16      *str;
    UINTN       len;
    UINTN       maxlen;
} POOL_PRINT;

CHAR16 *
CatPrint (
    IN OUT POOL_PRINT   *Str,
    IN CONST CHAR16     *fmt,
    ...
    );

UINTN
PrintAt (
    IN UINTN         Column,
    IN UINTN         Row,
    IN CONST CHAR16  *fmt,
    ...
    );

UINTN
IPrint (
    IN SIMPLE_TEXT_OUTPUT_INTERFACE    *Out,
    IN CONST CHAR16                    *fmt,
    ...
    );

UINTN
IPrintAt (
    IN SIMPLE_TEXT_OUTPUT_INTERFACE     *Out,
    IN UINTN                            Column,
    IN UINTN                            Row,
    IN CONST CHAR16                     *fmt,
    ...
    );

UINTN
AsciiPrint (
    IN CONST CHAR8    *fmt,
    ...
    );

UINTN
AsciiVSPrint(
    OUT CHAR8         *Str,
    IN  UINTN         StrSize,
    IN  CONST CHAR8   *fmt,
    va_list           args
);

//
// For compatibility with previous gnu-efi versions
//
#define SPrint      UnicodeSPrint
#define VSPrint     UnicodeVSPrint
#define APrint      AsciiPrint

VOID
ValueToHex (
    IN CHAR16   *Buffer,
    IN UINT64   v
    );

VOID
ValueToString (
    IN CHAR16   *Buffer,
    IN BOOLEAN  Comma,
    IN INT64    v
    );

#ifndef __NetBSD__
VOID
FloatToString (
    IN CHAR16   *Buffer,
    IN BOOLEAN  Comma,
    IN double    v
    );
#endif

VOID
TimeToString (
    OUT CHAR16      *Buffer,
    IN EFI_TIME     *Time
    );

VOID
GuidToString (
    OUT CHAR16      *Buffer,
    IN EFI_GUID     *Guid
    );

VOID
StatusToString (
    OUT CHAR16      *Buffer,
    EFI_STATUS      Status
    );

VOID
DumpHex (
    IN UINTN        Indent,
    IN UINTN        Offset,
    IN UINTN        DataSize,
    IN VOID         *UserData
    );

BOOLEAN
GrowBuffer(
    IN OUT EFI_STATUS   *Status,
    IN OUT VOID         **Buffer,
    IN UINTN            BufferSize
    );

EFI_MEMORY_DESCRIPTOR *
LibMemoryMap (
    OUT UINTN               *NoEntries,
    OUT UINTN               *MapKey,
    OUT UINTN               *DescriptorSize,
    OUT UINT32              *DescriptorVersion
    );

VOID *
LibGetVariable (
    IN CHAR16               *Name,
    IN EFI_GUID             *VendorGuid
    );

VOID *
LibGetVariableAndSize (
    IN CHAR16               *Name,
    IN EFI_GUID             *VendorGuid,
    OUT UINTN               *VarSize
    );

EFI_STATUS
LibDeleteVariable (
    IN CHAR16   *VarName,
    IN EFI_GUID *VarGuid
    );

EFI_STATUS
LibSetNVVariable (
    IN CHAR16   *VarName,
    IN EFI_GUID *VarGuid,
    IN UINTN	 DataSize,
    IN VOID     *Data
    );

EFI_STATUS
LibSetVariable (
    IN CHAR16   *VarName,
    IN EFI_GUID *VarGuid,
    IN UINTN	 DataSize,
    IN VOID     *Data
    );
EFI_STATUS
LibInsertToTailOfBootOrder (
    IN  UINT16  BootOption,
    IN  BOOLEAN OnlyInsertIfEmpty
    );

EFI_STATUS
LibLocateProtocol (
    IN  EFI_GUID    *ProtocolGuid,
    OUT VOID        **Interface
    );

EFI_STATUS
LibLocateHandle (
    IN EFI_LOCATE_SEARCH_TYPE   SearchType,
    IN EFI_GUID                 *Protocol OPTIONAL,
    IN VOID                     *SearchKey OPTIONAL,
    IN OUT UINTN                *NoHandles,
    OUT EFI_HANDLE              **Buffer
    );

EFI_STATUS
LibLocateHandleByDiskSignature (
    IN UINT8                        MBRType,
    IN UINT8                        SignatureType,
    IN VOID                         *Signature,
    IN OUT UINTN                    *NoHandles,
    OUT EFI_HANDLE                  **Buffer
    );

EFI_STATUS
LibInstallProtocolInterfaces (
    IN OUT EFI_HANDLE       *Handle,
    ...
    );

VOID
LibUninstallProtocolInterfaces (
    IN EFI_HANDLE           Handle,
    ...
    );

EFI_STATUS
LibReinstallProtocolInterfaces (
    IN OUT EFI_HANDLE           *Handle,
    ...
    );

EFI_EVENT
LibCreateProtocolNotifyEvent (
    IN EFI_GUID             *ProtocolGuid,
    IN EFI_TPL              NotifyTpl,
    IN EFI_EVENT_NOTIFY     NotifyFunction,
    IN VOID                 *NotifyContext,
    OUT VOID                *Registration
    );

EFI_STATUS
WaitForSingleEvent (
    IN EFI_EVENT        Event,
    IN UINT64           Timeout OPTIONAL
    );

VOID
WaitForEventWithTimeout (
    IN  EFI_EVENT       Event,
    IN  UINTN           Timeout,
    IN  UINTN           Row,
    IN  UINTN           Column,
    IN  CHAR16          *String,
    IN  EFI_INPUT_KEY   TimeoutKey,
    OUT EFI_INPUT_KEY   *Key
    );

EFI_FILE_HANDLE
LibOpenRoot (
    IN EFI_HANDLE           DeviceHandle
    );

EFI_FILE_INFO *
LibFileInfo (
    IN EFI_FILE_HANDLE      FHand
    );

EFI_FILE_SYSTEM_INFO *
LibFileSystemInfo (
    IN EFI_FILE_HANDLE      FHand
    );

EFI_FILE_SYSTEM_VOLUME_LABEL_INFO *
LibFileSystemVolumeLabelInfo (
    IN EFI_FILE_HANDLE      FHand
    );

BOOLEAN
ValidMBR(
    IN  MASTER_BOOT_RECORD  *Mbr,
    IN  EFI_BLOCK_IO        *BlkIo
    );

BOOLEAN
LibMatchDevicePaths (
    IN  EFI_DEVICE_PATH *Multi,
    IN  EFI_DEVICE_PATH *Single
    );

EFI_DEVICE_PATH *
LibDuplicateDevicePathInstance (
    IN EFI_DEVICE_PATH  *DevPath
    );

EFI_DEVICE_PATH *
DevicePathFromHandle (
    IN EFI_HANDLE           Handle
    );

EFI_DEVICE_PATH *
DevicePathInstance (
    IN OUT EFI_DEVICE_PATH  **DevicePath,
    OUT UINTN               *Size
    );

UINTN
DevicePathInstanceCount (
    IN EFI_DEVICE_PATH      *DevicePath
    );

EFI_DEVICE_PATH *
AppendDevicePath (
    IN EFI_DEVICE_PATH      *Src1,
    IN EFI_DEVICE_PATH      *Src2
    );

EFI_DEVICE_PATH *
AppendDevicePathNode (
    IN EFI_DEVICE_PATH      *Src1,
    IN EFI_DEVICE_PATH      *Src2
    );

EFI_DEVICE_PATH*
AppendDevicePathInstance (
    IN EFI_DEVICE_PATH  *Src,
    IN EFI_DEVICE_PATH  *Instance
    );

EFI_DEVICE_PATH *
FileDevicePath (
    IN EFI_HANDLE           Device  OPTIONAL,
    IN CHAR16               *FileName
    );

UINTN
DevicePathSize (
    IN EFI_DEVICE_PATH      *DevPath
    );

EFI_DEVICE_PATH *
DuplicateDevicePath (
    IN EFI_DEVICE_PATH      *DevPath
    );

EFI_DEVICE_PATH *
UnpackDevicePath (
    IN EFI_DEVICE_PATH      *DevPath
    );

EFI_STATUS
LibDevicePathToInterface (
    IN EFI_GUID             *Protocol,
    IN EFI_DEVICE_PATH      *FilePath,
    OUT VOID                **Interface
    );

CHAR16 *
DevicePathToStr (
    EFI_DEVICE_PATH         *DevPath
    );

//
// BugBug: I need my own include files
//
typedef struct {
    UINT8   Register;
    UINT8   Function;
    UINT8   Device;
    UINT8   Bus;
    UINT32  Reserved;
} EFI_ADDRESS;

typedef union {
    UINT64          Address;
    EFI_ADDRESS     EfiAddress;
} EFI_PCI_ADDRESS_UNION;


EFI_STATUS
PciFindDeviceClass (
    IN  OUT EFI_PCI_ADDRESS_UNION   *Address,
    IN      UINT8                   BaseClass,
    IN      UINT8                   SubClass
    );

EFI_STATUS
PciFindDevice (
    IN  OUT EFI_PCI_ADDRESS_UNION   *DeviceAddress,
    IN      UINT16                  VendorId,
    IN      UINT16                  DeviceId,
    IN OUT  PCI_TYPE00              *Pci
    );

//
// SIMPLE_READ_FILE object used to access files
//

typedef VOID        *SIMPLE_READ_FILE;

EFI_STATUS
OpenSimpleReadFile (
    IN BOOLEAN                  BootPolicy,
    IN VOID                     *SourceBuffer   OPTIONAL,
    IN UINTN                    SourceSize,
    IN OUT EFI_DEVICE_PATH      **FilePath,
    OUT EFI_HANDLE              *DeviceHandle,
    OUT SIMPLE_READ_FILE        *SimpleReadHandle
    );

EFI_STATUS
ReadSimpleReadFile (
    IN SIMPLE_READ_FILE     SimpleReadHandle,
    IN UINTN                Offset,
    IN OUT UINTN            *ReadSize,
    OUT VOID                *Buffer
    );


VOID
CloseSimpleReadFile (
    IN SIMPLE_READ_FILE     SimpleReadHandle
    );

VOID
InitializeGuid (
    VOID
    );

UINT8
DecimaltoBCD(
    IN  UINT8 DecValue
    );

UINT8
BCDtoDecimal(
    IN  UINT8 BcdValue
    );

EFI_STATUS
LibGetSystemConfigurationTable(
    IN EFI_GUID *TableGuid,
    IN OUT VOID **Table
    );

BOOLEAN
LibIsValidTextGraphics (
    IN  CHAR16  Graphic,
    OUT CHAR8   *PcAnsi,    OPTIONAL
    OUT CHAR8   *Ascii      OPTIONAL
    );

BOOLEAN
IsValidAscii (
    IN  CHAR16  Ascii
    );

BOOLEAN
IsValidEfiCntlChar (
    IN  CHAR16  c
    );

CHAR16 *
LibGetUiString (
    IN  EFI_HANDLE      Handle,
    IN  UI_STRING_TYPE  StringType,
    IN  ISO_639_2       *LangCode,
    IN  BOOLEAN         ReturnDevicePathStrOnMismatch
    );

CHAR8*
LibGetSmbiosString (
    IN  SMBIOS_STRUCTURE_POINTER    *Smbios,
    IN  UINT16                      StringNumber
    );

EFI_STATUS
LibGetSmbiosSystemGuidAndSerialNumber (
    IN  EFI_GUID    *SystemGuid,
    OUT CHAR8       **SystemSerialNumber
    );


EFI_STATUS
InitializeGlobalIoDevice (
        IN  EFI_DEVICE_PATH             *DevicePath,
        IN  EFI_GUID                    *Protocol,
        IN  CHAR8                       *ErrorStr,
        OUT EFI_DEVICE_IO_INTERFACE     **GlobalIoFncs
        );

UINT32
ReadPort (
        IN  EFI_DEVICE_IO_INTERFACE     *GlobalIoFncs,
        IN  EFI_IO_WIDTH                Width,
        IN  UINTN                       Port
        );

UINT32
WritePort (
        IN  EFI_DEVICE_IO_INTERFACE     *GlobalIoFncs,
        IN  EFI_IO_WIDTH                Width,
        IN  UINTN                       Port,
        IN  UINTN                       Data
        );

UINT32
ReadPciConfig (
        IN  EFI_DEVICE_IO_INTERFACE     *GlobalIoFncs,
        IN  EFI_IO_WIDTH                Width,
        IN  UINTN                       Port
        );

UINT32
WritePciConfig (
        IN  EFI_DEVICE_IO_INTERFACE     *GlobalIoFncs,
        IN  EFI_IO_WIDTH                Width,
        IN  UINTN                       Port,
        IN  UINTN                       Data
        );

VOID
Pause (
    VOID
);

extern EFI_DEVICE_IO_INTERFACE  *GlobalIoFncs;

#define outp(_Port, _DataByte)  (UINT8)WritePort(GlobalIoFncs,  IO_UINT8,  (UINTN)_Port, (UINTN)_DataByte)
#define inp(_Port)              (UINT8)ReadPort(GlobalIoFncs,   IO_UINT8,  (UINTN)_Port)
#define outpw(_Port, _DataByte) (UINT16)WritePort(GlobalIoFncs, IO_UINT16, (UINTN)_Port, (UINTN)_DataByte)
#define inpw(_Port)             (UINT16)ReadPort(GlobalIoFncs,  IO_UINT16, (UINTN)_Port)
#define outpd(_Port, _DataByte) (UINT32)WritePort(GlobalIoFncs, IO_UINT32, (UINTN)_Port, (UINTN)_DataByte)
#define inpd(_Port)             (UINT32)ReadPort(GlobalIoFncs,  IO_UINT32, (UINTN)_Port)

#define writepci8(_Addr, _DataByte)  (UINT8)WritePciConfig(GlobalIoFncs,  IO_UINT8,  (UINTN)_Addr, (UINTN)_DataByte)
#define readpci8(_Addr)              (UINT8)ReadPciConfig(GlobalIoFncs,   IO_UINT8,  (UINTN)_Addr)
#define writepci16(_Addr, _DataByte) (UINT16)WritePciConfig(GlobalIoFncs, IO_UINT16, (UINTN)_Addr, (UINTN)_DataByte)
#define readpci16(_Addr)             (UINT16)ReadPciConfig(GlobalIoFncs,  IO_UINT16, (UINTN)_Addr)
#define writepci32(_Addr, _DataByte) (UINT32)WritePciConfig(GlobalIoFncs, IO_UINT32, (UINTN)_Addr, (UINTN)_DataByte)
#define readpci32(_Addr)             (UINT32)ReadPciConfig(GlobalIoFncs,  IO_UINT32, (UINTN)_Addr)

#define Port80(_PostCode)   GlobalIoFncs->Io.Write (GlobalIoFncs, IO_UINT16, (UINT64)0x80, 1, &(_PostCode))

#endif