mirror of https://github.com/acidanthera/audk.git
192 lines
6.0 KiB
C
192 lines
6.0 KiB
C
/** @file
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Partition driver that produces logical BlockIo devices from a physical
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BlockIo device. The logical BlockIo devices are based on the format
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of the raw block devices media. Currently "El Torito CD-ROM", Legacy
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MBR, and GPT partition schemes are supported.
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Copyright (c) 2006 - 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _PARTITION_H
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#define _PARTITION_H
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#include <Uefi.h>
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#include <Protocol/BlockIo.h>
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#include <Guid/Gpt.h>
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#include <Protocol/ComponentName.h>
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#include <Protocol/DevicePath.h>
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#include <Protocol/DriverBinding.h>
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#include <Protocol/DiskIo.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/BaseLib.h>
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#include <Library/UefiLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/DevicePathLib.h>
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#include <IndustryStandard/Mbr.h>
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#include <IndustryStandard/ElTorito.h>
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//
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// Partition private data
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//
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#define PARTITION_PRIVATE_DATA_SIGNATURE EFI_SIGNATURE_32 ('P', 'a', 'r', 't')
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typedef struct {
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UINT64 Signature;
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EFI_HANDLE Handle;
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EFI_DEVICE_PATH_PROTOCOL *DevicePath;
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EFI_BLOCK_IO_PROTOCOL BlockIo;
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EFI_BLOCK_IO_MEDIA Media;
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EFI_DISK_IO_PROTOCOL *DiskIo;
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EFI_BLOCK_IO_PROTOCOL *ParentBlockIo;
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UINT64 Start;
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UINT64 End;
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UINT32 BlockSize;
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EFI_GUID *EspGuid;
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} PARTITION_PRIVATE_DATA;
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#define PARTITION_DEVICE_FROM_BLOCK_IO_THIS(a) CR (a, PARTITION_PRIVATE_DATA, BlockIo, PARTITION_PRIVATE_DATA_SIGNATURE)
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//
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// Global Variables
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//
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extern EFI_DRIVER_BINDING_PROTOCOL gPartitionDriverBinding;
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extern EFI_COMPONENT_NAME_PROTOCOL gPartitionComponentName;
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//
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// Extract INT32 from char array
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//
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#define UNPACK_INT32(a) (INT32)( (((UINT8 *) a)[0] << 0) | \
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(((UINT8 *) a)[1] << 8) | \
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(((UINT8 *) a)[2] << 16) | \
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(((UINT8 *) a)[3] << 24) )
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//
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// Extract UINT32 from char array
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//
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#define UNPACK_UINT32(a) (UINT32)( (((UINT8 *) a)[0] << 0) | \
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(((UINT8 *) a)[1] << 8) | \
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(((UINT8 *) a)[2] << 16) | \
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(((UINT8 *) a)[3] << 24) )
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//
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// Function Prototypes
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//
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EFI_STATUS
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EFIAPI
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PartitionDriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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);
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EFI_STATUS
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EFIAPI
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PartitionDriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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);
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EFI_STATUS
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EFIAPI
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PartitionDriverBindingStop (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE *ChildHandleBuffer
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);
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//
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// EFI Component Name Functions
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//
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EFI_STATUS
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EFIAPI
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PartitionComponentNameGetDriverName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN CHAR8 *Language,
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OUT CHAR16 **DriverName
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);
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EFI_STATUS
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EFIAPI
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PartitionComponentNameGetControllerName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_HANDLE ChildHandle OPTIONAL,
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IN CHAR8 *Language,
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OUT CHAR16 **ControllerName
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);
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EFI_STATUS
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PartitionInstallChildHandle (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ParentHandle,
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IN EFI_DISK_IO_PROTOCOL *ParentDiskIo,
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IN EFI_BLOCK_IO_PROTOCOL *ParentBlockIo,
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IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePathNode,
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IN UINT64 Start,
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IN UINT64 End,
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IN UINT32 BlockSize,
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IN BOOLEAN InstallEspGuid
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)
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;
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EFI_STATUS
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PartitionInstallGptChildHandles (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN EFI_DISK_IO_PROTOCOL *DiskIo,
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IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
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)
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;
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EFI_STATUS
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PartitionInstallElToritoChildHandles (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN EFI_DISK_IO_PROTOCOL *DiskIo,
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IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
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)
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;
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EFI_STATUS
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PartitionInstallMbrChildHandles (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN EFI_DISK_IO_PROTOCOL *DiskIo,
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IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
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)
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;
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typedef
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EFI_STATUS
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(*PARTITION_DETECT_ROUTINE) (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN EFI_DISK_IO_PROTOCOL *DiskIo,
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IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
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);
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#endif
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