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/** @file
*
* Copyright (c) 2013, ARM Limited. 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 __BDS_ENTRY_H__
#define __BDS_ENTRY_H__
typedef UINT8* EFI_LOAD_OPTION;
/**
This is defined by the UEFI specs, don't change it
**/
typedef struct {
UINT16 LoadOptionIndex;
EFI_LOAD_OPTION LoadOption;
UINTN LoadOptionSize;
UINT32 Attributes;
UINT16 FilePathListLength;
CHAR16 *Description;
EFI_DEVICE_PATH_PROTOCOL *FilePathList;
VOID* OptionalData;
UINTN OptionalDataSize;
} BDS_LOAD_OPTION;
/**
Connect a Device Path and return the handle of the driver that support this DevicePath
@param DevicePath Device Path of the File to connect
@param Handle Handle of the driver that support this DevicePath
@param RemainingDevicePath Remaining DevicePath nodes that do not match the driver DevicePath
@retval EFI_SUCCESS A driver that matches the Device Path has been found
@retval EFI_NOT_FOUND No handles match the search.
@retval EFI_INVALID_PARAMETER DevicePath or Handle is NULL
**/
EFI_STATUS
BdsConnectDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL* DevicePath,
OUT EFI_HANDLE *Handle,
OUT EFI_DEVICE_PATH_PROTOCOL **RemainingDevicePath
);
/**
Connect all DXE drivers
@retval EFI_SUCCESS All drivers have been connected
@retval EFI_NOT_FOUND No handles match the search.
@retval EFI_OUT_OF_RESOURCES There is not resource pool memory to store the matching results.
**/
EFI_STATUS
BdsConnectAllDrivers (
VOID
);
/**
Return the value of a global variable defined by its VariableName.
The variable must be defined with the VendorGuid gEfiGlobalVariableGuid.
@param VariableName A Null-terminated string that is the name of the vendor's
variable.
@param DefaultValue Value returned by the function if the variable does not exist
@param DataSize On input, the size in bytes of the return Data buffer.
On output the size of data returned in Data.
@param Value Value read from the UEFI Variable or copy of the default value
if the UEFI Variable does not exist
@retval EFI_SUCCESS All drivers have been connected
@retval EFI_NOT_FOUND No handles match the search.
@retval EFI_OUT_OF_RESOURCES There is not resource pool memory to store the matching results.
**/
EFI_STATUS
GetGlobalEnvironmentVariable (
IN CONST CHAR16* VariableName,
IN VOID* DefaultValue,
IN OUT UINTN* Size,
OUT VOID** Value
);
/**
Return the value of the variable defined by its VariableName and VendorGuid
@param VariableName A Null-terminated string that is the name of the vendor's
variable.
@param VendorGuid A unique identifier for the vendor.
@param DefaultValue Value returned by the function if the variable does not exist
@param DataSize On input, the size in bytes of the return Data buffer.
On output the size of data returned in Data.
@param Value Value read from the UEFI Variable or copy of the default value
if the UEFI Variable does not exist
@retval EFI_SUCCESS All drivers have been connected
@retval EFI_NOT_FOUND No handles match the search.
@retval EFI_OUT_OF_RESOURCES There is not resource pool memory to store the matching results.
**/
EFI_STATUS
GetEnvironmentVariable (
IN CONST CHAR16* VariableName,
IN EFI_GUID* VendorGuid,
IN VOID* DefaultValue,
IN OUT UINTN* Size,
OUT VOID** Value
);
EFI_STATUS
BootOptionFromLoadOptionIndex (
IN UINT16 LoadOptionIndex,
OUT BDS_LOAD_OPTION** BdsLoadOption
);
EFI_STATUS
BootOptionFromLoadOptionVariable (
IN CHAR16* BootVariableName,
OUT BDS_LOAD_OPTION** BdsLoadOption
);
EFI_STATUS
BootOptionToLoadOptionVariable (
IN BDS_LOAD_OPTION* BdsLoadOption
);
UINT16
BootOptionAllocateBootIndex (
VOID
);
/**
Start a Linux kernel from a Device Path
@param LinuxKernel Device Path to the Linux Kernel
@param Parameters Linux kernel arguments
@retval EFI_SUCCESS All drivers have been connected
@retval EFI_NOT_FOUND The Linux kernel Device Path has not been found
@retval EFI_OUT_OF_RESOURCES There is not enough resource memory to store the matching results.
**/
EFI_STATUS
BdsBootLinuxAtag (
IN EFI_DEVICE_PATH_PROTOCOL* LinuxKernelDevicePath,
IN EFI_DEVICE_PATH_PROTOCOL* InitrdDevicePath,
IN CONST CHAR8* Arguments
);
/**
Start a Linux kernel from a Device Path
@param[in] LinuxKernelDevicePath Device Path to the Linux Kernel
@param[in] InitrdDevicePath Device Path to the Initrd
@param[in] Arguments Linux kernel arguments
@retval EFI_SUCCESS All drivers have been connected
@retval EFI_NOT_FOUND The Linux kernel Device Path has not been found
@retval EFI_OUT_OF_RESOURCES There is not enough resource memory to store the matching results.
**/
EFI_STATUS
BdsBootLinuxFdt (
IN EFI_DEVICE_PATH_PROTOCOL* LinuxKernelDevicePath,
IN EFI_DEVICE_PATH_PROTOCOL* InitrdDevicePath,
IN CONST CHAR8* Arguments
);
/**
Start an EFI Application from a Device Path
@param ParentImageHandle Handle of the calling image
@param DevicePath Location of the EFI Application
@retval EFI_SUCCESS All drivers have been connected
@retval EFI_NOT_FOUND The Linux kernel Device Path has not been found
@retval EFI_OUT_OF_RESOURCES There is not enough resource memory to store the matching results.
**/
EFI_STATUS
BdsStartEfiApplication (
IN EFI_HANDLE ParentImageHandle,
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
IN UINTN LoadOptionsSize,
IN VOID* LoadOptions
);
/**
Start an EFI Application from any Firmware Volume
@param EfiApp EFI Application Name
@retval EFI_SUCCESS All drivers have been connected
@retval EFI_NOT_FOUND The Linux kernel Device Path has not been found
@retval EFI_OUT_OF_RESOURCES There is not enough resource memory to store the matching results.
**/
EFI_STATUS
BdsLoadApplication (
IN EFI_HANDLE ParentImageHandle,
IN CHAR16* EfiApp,
IN UINTN LoadOptionsSize,
IN VOID* LoadOptions
);
EFI_STATUS
BdsLoadImage (
IN EFI_DEVICE_PATH *DevicePath,
IN EFI_ALLOCATE_TYPE Type,
IN OUT EFI_PHYSICAL_ADDRESS* Image,
OUT UINTN *FileSize
);
#endif
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