Initial import.

[mirror_edk2.git] / EdkModulePkg / Universal / Disk / Partition / Dxe / Partition.h

/*++\r
\r
Copyright (c) 2006, Intel Corporation                                                         \r
All rights reserved. This program and the accompanying materials                          \r
are licensed and made available under the terms and conditions of the BSD License         \r
which accompanies this distribution.  The full text of the license may be found at        \r
http://opensource.org/licenses/bsd-license.php                                            \r
                                                                                          \r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
\r
Module Name:\r
\r
  Partition.h\r
  \r
Abstract:\r
\r
  Partition driver that produces logical BlockIo devices from a physical \r
  BlockIo device. The logical BlockIo devices are based on the format\r
  of the raw block devices media. Currently "El Torito CD-ROM", Legacy \r
  MBR, and GPT partition schemes are supported.\r
\r
Revision History\r
\r
--*/\r
\r
#ifndef __PARTITION_H__\r
#define __PARTITION_H__\r
\r
\r
\r
//\r
// Partition private data\r
//\r
#define PARTITION_PRIVATE_DATA_SIGNATURE  EFI_SIGNATURE_32 ('P', 'a', 'r', 't')\r
typedef struct {\r
  UINT64                    Signature;\r
\r
  EFI_HANDLE                Handle;\r
  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;\r
  EFI_BLOCK_IO_PROTOCOL     BlockIo;\r
  EFI_BLOCK_IO_MEDIA        Media;\r
\r
  EFI_DISK_IO_PROTOCOL      *DiskIo;\r
  EFI_BLOCK_IO_PROTOCOL     *ParentBlockIo;\r
  UINT64                    Start;\r
  UINT64                    End;\r
  UINT32                    BlockSize;\r
\r
  EFI_GUID                  *EspGuid;\r
\r
} PARTITION_PRIVATE_DATA;\r
\r
#define PARTITION_DEVICE_FROM_BLOCK_IO_THIS(a)  CR (a, PARTITION_PRIVATE_DATA, BlockIo, PARTITION_PRIVATE_DATA_SIGNATURE)\r
\r
//\r
// Global Variables\r
//\r
extern EFI_DRIVER_BINDING_PROTOCOL  gPartitionDriverBinding;\r
extern EFI_COMPONENT_NAME_PROTOCOL  gPartitionComponentName;\r
\r
//\r
// Extract INT32 from char array\r
//\r
#define UNPACK_INT32(a) (INT32)( (((UINT8 *) a)[0] <<  0) |    \\r
                                 (((UINT8 *) a)[1] <<  8) |    \\r
                                 (((UINT8 *) a)[2] << 16) |    \\r
                                 (((UINT8 *) a)[3] << 24) )\r
\r
//\r
// Extract UINT32 from char array\r
//\r
#define UNPACK_UINT32(a) (UINT32)( (((UINT8 *) a)[0] <<  0) |    \\r
                                   (((UINT8 *) a)[1] <<  8) |    \\r
                                   (((UINT8 *) a)[2] << 16) |    \\r
                                   (((UINT8 *) a)[3] << 24) )\r
\r
EFI_STATUS\r
PartitionInstallChildHandle (\r
  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,\r
  IN  EFI_HANDLE                   ParentHandle,\r
  IN  EFI_DISK_IO_PROTOCOL         *ParentDiskIo,\r
  IN  EFI_BLOCK_IO_PROTOCOL        *ParentBlockIo,\r
  IN  EFI_DEVICE_PATH_PROTOCOL     *ParentDevicePath,\r
  IN  EFI_DEVICE_PATH_PROTOCOL     *DevicePathNode,\r
  IN  UINT64                       Start,\r
  IN  UINT64                       End,\r
  IN  UINT32                       BlockSize,\r
  IN  BOOLEAN                      InstallEspGuid\r
  )\r
;\r
\r
BOOLEAN\r
PartitionInstallGptChildHandles (\r
  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,\r
  IN  EFI_HANDLE                   Handle,\r
  IN  EFI_DISK_IO_PROTOCOL         *DiskIo,\r
  IN  EFI_BLOCK_IO_PROTOCOL        *BlockIo,\r
  IN  EFI_DEVICE_PATH_PROTOCOL     *DevicePath\r
  )\r
;\r
\r
BOOLEAN\r
PartitionInstallElToritoChildHandles (\r
  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,\r
  IN  EFI_HANDLE                   Handle,\r
  IN  EFI_DISK_IO_PROTOCOL         *DiskIo,\r
  IN  EFI_BLOCK_IO_PROTOCOL        *BlockIo,\r
  IN  EFI_DEVICE_PATH_PROTOCOL     *DevicePath\r
  )\r
;\r
\r
BOOLEAN\r
PartitionInstallMbrChildHandles (\r
  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,\r
  IN  EFI_HANDLE                   Handle,\r
  IN  EFI_DISK_IO_PROTOCOL         *DiskIo,\r
  IN  EFI_BLOCK_IO_PROTOCOL        *BlockIo,\r
  IN  EFI_DEVICE_PATH_PROTOCOL     *DevicePath\r
  )\r
;\r
\r
#endif\r