/** @file
Generic BDS library definition, include the data structure and function.
Copyright (c) 2004 - 2008, Intel Corporation.
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _GENERIC_BDS_LIB_H_
#define _GENERIC_BDS_LIB_H_
#include
#include
#include
extern EFI_HANDLE mBdsImageHandle;
//
// Constants which are variable names used to access variables
//
#define VAR_LEGACY_DEV_ORDER L"LegacyDevOrder"
//
// Data structures and defines
//
#define FRONT_PAGE_QUESTION_ID 0x0000
#define FRONT_PAGE_DATA_WIDTH 0x01
//
// ConnectType
//
#define CONSOLE_OUT 0x00000001
#define STD_ERROR 0x00000002
#define CONSOLE_IN 0x00000004
#define CONSOLE_ALL (CONSOLE_OUT | CONSOLE_IN | STD_ERROR)
//
// Load Option Attributes defined in EFI Specification
//
#define LOAD_OPTION_ACTIVE 0x00000001
#define LOAD_OPTION_FORCE_RECONNECT 0x00000002
#define LOAD_OPTION_HIDDEN 0x00000008
#define LOAD_OPTION_CATEGORY 0x00001F00
#define LOAD_OPTION_CATEGORY_BOOT 0x00000000
#define LOAD_OPTION_CATEGORY_APP 0x00000100
#define EFI_BOOT_OPTION_SUPPORT_KEY 0x00000001
#define EFI_BOOT_OPTION_SUPPORT_APP 0x00000002
#define IS_LOAD_OPTION_TYPE(_c, _Mask) (BOOLEAN) (((_c) & (_Mask)) != 0)
//
// Define Maxmim characters that will be accepted
//
#define MAX_CHAR 480
#define MAX_CHAR_SIZE (MAX_CHAR * 2)
#define MIN_ALIGNMENT_SIZE 4
#define ALIGN_SIZE(a) ((a % MIN_ALIGNMENT_SIZE) ? MIN_ALIGNMENT_SIZE - (a % MIN_ALIGNMENT_SIZE) : 0)
//
// Define maximum characters for boot option variable "BootXXXX"
//
#define BOOT_OPTION_MAX_CHAR 10
//
// This data structure is the part of BDS_CONNECT_ENTRY that we can hard code.
//
#define BDS_LOAD_OPTION_SIGNATURE EFI_SIGNATURE_32 ('B', 'd', 'C', 'O')
typedef struct {
UINTN Signature;
LIST_ENTRY Link;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
CHAR16 *OptionName;
UINTN OptionNumber;
UINT16 BootCurrent;
UINT32 Attribute;
CHAR16 *Description;
VOID *LoadOptions;
UINT32 LoadOptionsSize;
CHAR16 *StatusString;
} BDS_COMMON_OPTION;
typedef struct {
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
UINTN ConnectType;
} BDS_CONSOLE_CONNECT_ENTRY;
//
// Lib Functions
//
//
// Bds boot related lib functions
//
/**
Boot from the UEFI spec defined "BootNext" variable.
**/
VOID
EFIAPI
BdsLibBootNext (
VOID
);
/**
Process the boot option follow the UEFI specification and
special treat the legacy boot option with BBS_DEVICE_PATH.
@param Option The boot option need to be processed
@param DevicePath The device path which describe where to load the
boot image or the legcy BBS device path to boot
the legacy OS
@param ExitDataSize The size of exit data.
@param ExitData Data returned when Boot image failed.
@retval EFI_SUCCESS Boot from the input boot option successfully.
@retval EFI_NOT_FOUND If the Device Path is not found in the system
**/
EFI_STATUS
EFIAPI
BdsLibBootViaBootOption (
IN BDS_COMMON_OPTION * Option,
IN EFI_DEVICE_PATH_PROTOCOL * DevicePath,
OUT UINTN *ExitDataSize,
OUT CHAR16 **ExitData OPTIONAL
);
/**
This function will enumerate all possible boot device in the system,
it will only excute once of every boot.
@param BdsBootOptionList The header of the link list which indexed all
current boot options
@retval EFI_SUCCESS Finished all the boot device enumerate and create
the boot option base on that boot device
**/
EFI_STATUS
EFIAPI
BdsLibEnumerateAllBootOption (
IN OUT LIST_ENTRY *BdsBootOptionList
);
/**
Build the boot option with the handle parsed in
@param Handle The handle which present the device path to create
boot option
@param BdsBootOptionList The header of the link list which indexed all
current boot options
@param String The description of the boot option.
**/
VOID
EFIAPI
BdsLibBuildOptionFromHandle (
IN EFI_HANDLE Handle,
IN LIST_ENTRY *BdsBootOptionList,
IN CHAR16 *String
);
/**
Build the on flash shell boot option with the handle parsed in.
@param Handle The handle which present the device path to create
on flash shell boot option
@param BdsBootOptionList The header of the link list which indexed all
current boot options
**/
VOID
EFIAPI
BdsLibBuildOptionFromShell (
IN EFI_HANDLE Handle,
IN OUT LIST_ENTRY *BdsBootOptionList
);
//
// Bds misc lib functions
//
/**
Return the default value for system Timeout variable.
@return Timeout value.
**/
UINT16
EFIAPI
BdsLibGetTimeout (
VOID
);
/**
Get boot mode by looking up configuration table and parsing HOB list
@param BootMode Boot mode from PEI handoff HOB.
@retval EFI_SUCCESS Successfully get boot mode
**/
EFI_STATUS
EFIAPI
BdsLibGetBootMode (
OUT EFI_BOOT_MODE *BootMode
);
/**
The function will go through the driver optoin link list, load and start
every driver the driver optoin device path point to.
@param BdsDriverLists The header of the current driver option link list
**/
VOID
EFIAPI
BdsLibLoadDrivers (
IN LIST_ENTRY *BdsDriverLists
);
/**
Process BootOrder, or DriverOrder variables, by calling
BdsLibVariableToOption () for each UINT16 in the variables.
@param BdsCommonOptionList The header of the option list base on variable
VariableName
@param VariableName EFI Variable name indicate the BootOrder or
DriverOrder
@retval EFI_SUCCESS Success create the boot option or driver option
list
@retval EFI_OUT_OF_RESOURCES Failed to get the boot option or driver option list
**/
EFI_STATUS
EFIAPI
BdsLibBuildOptionFromVar (
IN LIST_ENTRY *BdsCommonOptionList,
IN CHAR16 *VariableName
);
/**
Read the EFI variable (VendorGuid/Name) and return a dynamically allocated
buffer, and the size of the buffer. If failure return NULL.
@param Name String part of EFI variable name
@param VendorGuid GUID part of EFI variable name
@param VariableSize Returns the size of the EFI variable that was read
@return Dynamically allocated memory that contains a copy of the EFI variable
Caller is responsible freeing the buffer.
@retval NULL Variable was not read
**/
VOID *
EFIAPI
BdsLibGetVariableAndSize (
IN CHAR16 *Name,
IN EFI_GUID *VendorGuid,
OUT UINTN *VariableSize
);
/**
This function prints a series of strings.
@param ConOut Pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
@param ... A variable argument list containing series of
strings, the last string must be NULL.
@retval EFI_SUCCESS Success print out the string using ConOut.
@retval EFI_STATUS Return the status of the ConOut->OutputString ().
**/
EFI_STATUS
EFIAPI
BdsLibOutputStrings (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *ConOut,
...
);
/**
Build the boot#### or driver#### option from the VariableName, the
build boot#### or driver#### will also be linked to BdsCommonOptionList.
@param BdsCommonOptionList The header of the boot#### or driver#### option
link list
@param VariableName EFI Variable name indicate if it is boot#### or
driver####
@retval BDS_COMMON_OPTION Get the option just been created
@retval NULL Failed to get the new option
**/
BDS_COMMON_OPTION *
EFIAPI
BdsLibVariableToOption (
IN OUT LIST_ENTRY *BdsCommonOptionList,
IN CHAR16 *VariableName
);
/**
This function will register the new boot#### or driver#### option base on
the VariableName. The new registered boot#### or driver#### will be linked
to BdsOptionList and also update to the VariableName. After the boot#### or
driver#### updated, the BootOrder or DriverOrder will also be updated.
@param BdsOptionList The header of the boot#### or driver#### link list
@param DevicePath The device path which the boot#### or driver####
option present
@param String The description of the boot#### or driver####
@param VariableName Indicate if the boot#### or driver#### option
@retval EFI_SUCCESS The boot#### or driver#### have been success
registered
@retval EFI_STATUS Return the status of gRT->SetVariable ().
**/
EFI_STATUS
EFIAPI
BdsLibRegisterNewOption (
IN LIST_ENTRY *BdsOptionList,
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
IN CHAR16 *String,
IN CHAR16 *VariableName
);
//
// Bds connect or disconnect driver lib funcion
//
/**
Connects all drivers to all controllers.
This function make sure all the current system driver will manage
the correspoinding controllers if have. And at the same time, make
sure all the system controllers have driver to manage it if have.
**/
VOID
EFIAPI
BdsLibConnectAllDriversToAllControllers (
VOID
);
/**
This function will connect all the system driver to controller
first, and then special connect the default console, this make
sure all the system controller avialbe and the platform default
console connected.
**/
VOID
EFIAPI
BdsLibConnectAll (
VOID
);
/**
This function will create all handles associate with every device
path node. If the handle associate with one device path node can not
be created success, then still give one chance to do the dispatch,
which load the missing drivers if possible.
@param DevicePathToConnect The device path which will be connected, it can be
a multi-instance device path
@retval EFI_SUCCESS All handles associate with every device path node
have been created
@retval EFI_OUT_OF_RESOURCES There is no resource to create new handles
@retval EFI_NOT_FOUND Create the handle associate with one device path
node failed
**/
EFI_STATUS
EFIAPI
BdsLibConnectDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePathToConnect
);
/**
This function will connect all current system handles recursively. The
connection will finish until every handle's child handle created if it have.
@retval EFI_SUCCESS All handles and it's child handle have been
connected
@retval EFI_STATUS Return the status of gBS->LocateHandleBuffer().
**/
EFI_STATUS
EFIAPI
BdsLibConnectAllEfi (
VOID
);
/**
This function will disconnect all current system handles. The disconnection
will finish until every handle have been disconnected.
@retval EFI_SUCCESS All handles have been disconnected
@retval EFI_STATUS Return the status of gBS->LocateHandleBuffer().
**/
EFI_STATUS
EFIAPI
BdsLibDisconnectAllEfi (
VOID
);
//
// Bds console related lib functions
//
/**
This function will search every simpletxt devive in current system,
and make every simpletxt device as pertantial console device.
**/
VOID
EFIAPI
BdsLibConnectAllConsoles (
VOID
);
/**
This function will connect console device base on the console
device variable ConIn, ConOut and ErrOut.
@retval EFI_SUCCESS At least one of the ConIn and ConOut device have
been connected success.
@retval EFI_STATUS Return the status of BdsLibConnectConsoleVariable ().
**/
EFI_STATUS
EFIAPI
BdsLibConnectAllDefaultConsoles (
VOID
);
/**
This function update console variable based on ConVarName, it can
add or remove one specific console device path from the variable
@param ConVarName Console related variable name, ConIn, ConOut,
ErrOut.
@param CustomizedConDevicePath The console device path which will be added to
the console variable ConVarName, this parameter
can not be multi-instance.
@param ExclusiveDevicePath The console device path which will be removed
from the console variable ConVarName, this
parameter can not be multi-instance.
@retval EFI_UNSUPPORTED The added device path is same to the removed one.
@retval EFI_SUCCESS Success add or remove the device path from the
console variable.
**/
EFI_STATUS
EFIAPI
BdsLibUpdateConsoleVariable (
IN CHAR16 *ConVarName,
IN EFI_DEVICE_PATH_PROTOCOL *CustomizedConDevicePath,
IN EFI_DEVICE_PATH_PROTOCOL *ExclusiveDevicePath
);
/**
Connect the console device base on the variable ConVarName, if
device path of the ConVarName is multi-instance device path, if
anyone of the instances is connected success, then this function
will return success.
@param ConVarName Console related variable name, ConIn, ConOut,
ErrOut.
@retval EFI_NOT_FOUND There is not any console devices connected
success
@retval EFI_SUCCESS Success connect any one instance of the console
device path base on the variable ConVarName.
**/
EFI_STATUS
EFIAPI
BdsLibConnectConsoleVariable (
IN CHAR16 *ConVarName
);
//
// Bds device path related lib functions
//
/**
Function unpacks a device path data structure so that all the nodes
of a device path are naturally aligned.
@param DevPath A pointer to a device path data structure
@return If the memory for the device path is successfully allocated, then a
pointer to the new device path is returned. Otherwise, NULL is returned.
**/
EFI_DEVICE_PATH_PROTOCOL *
EFIAPI
BdsLibUnpackDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *DevPath
);
/**
Delete the instance in Multi which matches partly with Single instance
@param Multi A pointer to a multi-instance device path data
structure.
@param Single A pointer to a single-instance device path data
structure.
@return This function will remove the device path instances in Multi which partly
match with the Single, and return the result device path. If there is no
remaining device path as a result, this function will return NULL.
**/
EFI_DEVICE_PATH_PROTOCOL *
EFIAPI
BdsLibDelPartMatchInstance (
IN EFI_DEVICE_PATH_PROTOCOL *Multi,
IN EFI_DEVICE_PATH_PROTOCOL *Single
);
/**
Function compares a device path data structure to that of all the nodes of a
second device path instance.
@param Multi A pointer to a multi-instance device path data
structure.
@param Single A pointer to a single-instance device path data
structure.
@retval TRUE If the Single device path is contained within Multi device path.
@retval FALSE The Single device path is not match within Multi device path.
**/
BOOLEAN
EFIAPI
BdsLibMatchDevicePaths (
IN EFI_DEVICE_PATH_PROTOCOL *Multi,
IN EFI_DEVICE_PATH_PROTOCOL *Single
);
/**
This function converts an input device structure to a Unicode string.
@param DevPath A pointer to the device path structure.
@return A new allocated Unicode string that represents the device path.
**/
CHAR16 *
EFIAPI
DevicePathToStr (
IN EFI_DEVICE_PATH_PROTOCOL *DevPath
);
//
// Internal definitions
//
typedef struct {
CHAR16 *str;
UINTN len;
UINTN maxlen;
} POOL_PRINT;
typedef struct {
UINT8 Type;
UINT8 SubType;
VOID (*Function) (POOL_PRINT *, VOID *);
} DEVICE_PATH_STRING_TABLE;
extern EFI_GUID mEfiDevicePathMessagingUartFlowControlGuid;
typedef struct {
EFI_DEVICE_PATH_PROTOCOL Header;
EFI_GUID Guid;
UINT8 VendorDefinedData[1];
} VENDOR_DEVICE_PATH_WITH_DATA;
extern EFI_GUID mEfiDevicePathMessagingSASGuid;
typedef struct {
EFI_DEVICE_PATH_PROTOCOL Header;
UINT16 NetworkProtocol;
UINT16 LoginOption;
UINT64 Lun;
UINT16 TargetPortalGroupTag;
CHAR16 iSCSITargetName[1];
} ISCSI_DEVICE_PATH_WITH_NAME;
//
// Notes: EFI 64 shadow all option rom
//
#if defined (MDE_CPU_IPF)
#define EFI64_SHADOW_ALL_LEGACY_ROM() ShadowAllOptionRom ();
#else
#define EFI64_SHADOW_ALL_LEGACY_ROM()
#endif
/**
Shadow all Legacy OptionRom.
**/
VOID
EFIAPI
ShadowAllOptionRom (
VOID
);
//
// BBS support macros and functions
//
#if defined(MDE_CPU_IA32) || defined(MDE_CPU_X64)
#define REFRESH_LEGACY_BOOT_OPTIONS \
BdsDeleteAllInvalidLegacyBootOptions ();\
BdsAddNonExistingLegacyBootOptions (); \
BdsUpdateLegacyDevOrder ()
#else
#define REFRESH_LEGACY_BOOT_OPTIONS
#endif
/**
Delete all the invalid legacy boot options.
@retval EFI_SUCCESS All invalide legacy boot options are deleted.
@retval EFI_OUT_OF_RESOURCES Fail to allocate necessary memory.
@retval EFI_NOT_FOUND Fail to retrive variable of boot order.
**/
EFI_STATUS
EFIAPI
BdsDeleteAllInvalidLegacyBootOptions (
VOID
);
/**
Add the legacy boot options from BBS table if they do not exist.
@retval EFI_SUCCESS The boot options are added successfully
or they are already in boot options.
**/
EFI_STATUS
EFIAPI
BdsAddNonExistingLegacyBootOptions (
VOID
);
/**
Add the legacy boot devices from BBS table into
the legacy device boot order.
@retval EFI_SUCCESS The boot devices are added successfully.
**/
EFI_STATUS
EFIAPI
BdsUpdateLegacyDevOrder (
VOID
);
/**
Set the boot priority for BBS entries based on boot option entry and boot order.
@param Entry The boot option is to be checked for refresh BBS table.
@retval EFI_SUCCESS The boot priority for BBS entries is refreshed successfully.
**/
EFI_STATUS
EFIAPI
BdsRefreshBbsTableForBoot (
IN BDS_COMMON_OPTION *Entry
);
/**
Delete boot option specified by OptionNumber and adjust the boot order.
@param OptionNumber The boot option to be deleted.
@param BootOrder Boot order list to be adjusted by remove this boot option.
@param BootOrderSize The size of Boot order list will be modified.
@retval EFI_SUCCESS The boot option is deleted successfully.
**/
EFI_STATUS
EFIAPI
BdsDeleteBootOption (
IN UINTN OptionNumber,
IN OUT UINT16 *BootOrder,
IN OUT UINTN *BootOrderSize
);
//
//The interface functions relate with Setup Browser Reset Reminder feature
//
/**
Enable the setup browser reset reminder feature.
This routine is used in platform tip. If the platform policy need the feature, use the routine to enable it.
**/
VOID
EFIAPI
EnableResetReminderFeature (
VOID
);
/**
Disable the setup browser reset reminder feature.
This routine is used in platform tip. If the platform policy do not want the feature, use the routine to disable it.
**/
VOID
EFIAPI
DisableResetReminderFeature (
VOID
);
/**
Record the info that a reset is required.
A module boolean variable is used to record whether a reset is required.
**/
VOID
EFIAPI
EnableResetRequired (
VOID
);
/**
Record the info that no reset is required.
A module boolean variable is used to record whether a reset is required.
**/
VOID
EFIAPI
DisableResetRequired (
VOID
);
/**
Check whether platform policy enable the reset reminder feature. The default is enabled.
**/
BOOLEAN
EFIAPI
IsResetReminderFeatureEnable (
VOID
);
/**
Check if user changed any option setting which needs a system reset to be effective.
**/
BOOLEAN
EFIAPI
IsResetRequired (
VOID
);
/**
Check whether a reset is needed, and finish the reset reminder feature.
If a reset is needed, Popup a menu to notice user, and finish the feature
according to the user selection.
**/
VOID
EFIAPI
SetupResetReminder (
VOID
);
/**
Get the headers (dos, image, optional header) from an image
@param Device SimpleFileSystem device handle
@param FileName File name for the image
@param DosHeader Pointer to dos header
@param Hdr The buffer in which to return the PE32, PE32+, or TE header.
@retval EFI_SUCCESS Successfully get the machine type.
@retval EFI_NOT_FOUND The file is not found.
@retval EFI_LOAD_ERROR File is not a valid image file.
**/
EFI_STATUS
EFIAPI
BdsLibGetImageHeader (
IN EFI_HANDLE Device,
IN CHAR16 *FileName,
OUT EFI_IMAGE_DOS_HEADER *DosHeader,
OUT EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr
);
//
// Define the boot type which to classify the boot option type
// Different boot option type could have different boot behavior
// Use their device path node (Type + SubType) as type value
// The boot type here can be added according to requirement
//
//
// ACPI boot type. For ACPI device, cannot use sub-type to distinguish device, so hardcode their value
//
#define BDS_EFI_ACPI_FLOPPY_BOOT 0x0201
//
// Message boot type
// If a device path of boot option only point to a message node, the boot option is message boot type
//
#define BDS_EFI_MESSAGE_ATAPI_BOOT 0x0301 // Type 03; Sub-Type 01
#define BDS_EFI_MESSAGE_SCSI_BOOT 0x0302 // Type 03; Sub-Type 02
#define BDS_EFI_MESSAGE_USB_DEVICE_BOOT 0x0305 // Type 03; Sub-Type 05
#define BDS_EFI_MESSAGE_MISC_BOOT 0x03FF
//
// Media boot type
// If a device path of boot option contain a media node, the boot option is media boot type
//
#define BDS_EFI_MEDIA_HD_BOOT 0x0401 // Type 04; Sub-Type 01
#define BDS_EFI_MEDIA_CDROM_BOOT 0x0402 // Type 04; Sub-Type 02
//
// BBS boot type
// If a device path of boot option contain a BBS node, the boot option is BBS boot type
//
#define BDS_LEGACY_BBS_BOOT 0x0501 // Type 05; Sub-Type 01
#define BDS_EFI_UNSUPPORT 0xFFFF
//
// USB host controller Programming Interface.
//
#define PCI_CLASSC_PI_UHCI 0x00
#define PCI_CLASSC_PI_EHCI 0x20
/**
Check whether there is a instance in BlockIoDevicePath, which contain multi device path
instances, has the same partition node with HardDriveDevicePath device path
@param BlockIoDevicePath Multi device path instances which need to check
@param HardDriveDevicePath A device path which starts with a hard drive media
device path.
@retval TRUE There is a matched device path instance.
@retval FALSE There is no matched device path instance.
**/
BOOLEAN
EFIAPI
MatchPartitionDevicePathNode (
IN EFI_DEVICE_PATH_PROTOCOL *BlockIoDevicePath,
IN HARDDRIVE_DEVICE_PATH *HardDriveDevicePath
);
/**
Expand a device path that starts with a hard drive media device path node to be a
full device path that includes the full hardware path to the device. We need
to do this so it can be booted. As an optimizaiton the front match (the part point
to the partition node. E.g. ACPI() /PCI()/ATA()/Partition() ) is saved in a variable
so a connect all is not required on every boot. All successful history device path
which point to partition node (the front part) will be saved.
@param HardDriveDevicePath EFI Device Path to boot, if it starts with a hard
drive media device path.
@return A Pointer to the full device path or NULL if a valid Hard Drive devic path
cannot be found.
**/
EFI_DEVICE_PATH_PROTOCOL *
EFIAPI
BdsExpandPartitionPartialDevicePathToFull (
IN HARDDRIVE_DEVICE_PATH *HardDriveDevicePath
);
/**
Return the bootable media handle.
First, check the device is connected
Second, check whether the device path point to a device which support SimpleFileSystemProtocol,
Third, detect the the default boot file in the Media, and return the removable Media handle.
@param DevicePath Device Path to a bootable device
@retval NULL The media on the DevicePath is not bootable
**/
EFI_HANDLE
EFIAPI
BdsLibGetBootableHandle (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
);
/**
Check whether the Device path in a boot option point to a valide bootable device,
And if CheckMedia is true, check the device is ready to boot now.
@param DevPath the Device path in a boot option
@param CheckMedia if true, check the device is ready to boot now.
@retval TRUE the Device path is valide
@retval FALSE the Device path is invalide .
**/
BOOLEAN
EFIAPI
BdsLibIsValidEFIBootOptDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *DevPath,
IN BOOLEAN CheckMedia
);
/**
For a bootable Device path, return its boot type.
@param DevicePath The bootable device Path to check
@retval BDS_EFI_MEDIA_HD_BOOT If the device path contains any media deviec path node, it is media boot type
For the floppy node, handle it as media node
@retval BDS_EFI_MEDIA_CDROM_BOOT If the device path contains any media deviec path node, it is media boot type
For the floppy node, handle it as media node
@retval BDS_EFI_ACPI_FLOPPY_BOOT If the device path contains any media deviec path node, it is media boot type
For the floppy node, handle it as media node
@retval BDS_EFI_MESSAGE_ATAPI_BOOT If the device path not contains any media deviec path node, and
its last device path node point to a message device path node, it is
@retval BDS_EFI_MESSAGE_SCSI_BOOT If the device path not contains any media deviec path node, and
its last device path node point to a message device path node, it is
@retval BDS_EFI_MESSAGE_USB_DEVICE_BOOT If the device path not contains any media deviec path node, and
its last device path node point to a message device path node, it is
@retval BDS_EFI_MESSAGE_MISC_BOOT If the device path not contains any media deviec path node, and
its last device path node point to a message device path node, it is
@retval BDS_LEGACY_BBS_BOOT Legacy boot type
@retval BDS_EFI_UNSUPPORT An EFI Removable BlockIO device path not point to a media and message devie,
**/
UINT32
EFIAPI
BdsGetBootTypeFromDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
);
/**
This routine register a function to adjust the different type memory page number
just before booting and save the updated info into the variable for next boot to use.
**/
VOID
EFIAPI
BdsLibSaveMemoryTypeInformation (
VOID
);
/**
According to a file guild, check a Fv file device path is valid. If it is invalid,
try to return the valid device path.
FV address maybe changes for memory layout adjust from time to time, use this funciton
could promise the Fv file device path is right.
@param DevicePath on input, the Fv file device path need to check on
output, the updated valid Fv file device path
@param FileGuid the Fv file guild
@retval EFI_INVALID_PARAMETER the input DevicePath or FileGuid is invalid
parameter
@retval EFI_UNSUPPORTED the input DevicePath does not contain Fv file
guild at all
@retval EFI_ALREADY_STARTED the input DevicePath has pointed to Fv file, it is
valid
@retval EFI_SUCCESS has successfully updated the invalid DevicePath,
and return the updated device path in DevicePath
**/
EFI_STATUS
EFIAPI
BdsLibUpdateFvFileDevicePath (
IN OUT EFI_DEVICE_PATH_PROTOCOL ** DevicePath,
IN EFI_GUID *FileGuid
);
/**
Connect the specific Usb device which match the short form device path,
and whose bus is determined by Host Controller (Uhci or Ehci)
@param HostControllerPI Uhci (0x00) or Ehci (0x20) or Both uhci and ehci
(0xFF)
@param RemainingDevicePath a short-form device path that starts with the first
element being a USB WWID or a USB Class device
path
@retval EFI_SUCCESS The specific Usb device is connected successfully.
@retval EFI_INVALID_PARAMETER Invalid HostControllerPi (not 0x00, 0x20 or 0xFF)
or RemainingDevicePath is not the USB class device path.
@retval EFI_NOT_FOUND The device specified by device path is not found.
**/
EFI_STATUS
EFIAPI
BdsLibConnectUsbDevByShortFormDP(
IN UINT8 HostControllerPI,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
//
// The implementation of this function is provided by Platform code.
//
/**
Convert Vendor device path to device name.
@param Str The buffer store device name
@param DevPath Pointer to vendor device path
**/
VOID
EFIAPI
DevPathVendor (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
;
/**
Concatenates a formatted unicode string to allocated pool.
The caller must free the resulting buffer.
@param Str Tracks the allocated pool, size in use, and amount of pool allocated.
@param fmt The format string
@param ... The data will be printed.
@return Allocated buffer with the formatted string printed in it.
The caller must free the allocated buffer.
The buffer allocation is not packed.
**/
CHAR16 *
EFIAPI
CatPrint (
IN OUT POOL_PRINT *Str,
IN CHAR16 *fmt,
...
)
;
#endif