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52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/*
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* Copyright (c) 2014, Facebook, Inc.
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* Copyright (c) 2004, Intel Corporation
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*/
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/**
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* @brief EFI DevicePath GUIDs, structs, and macros.
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*/
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typedef struct {
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uint8_t Type;
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uint8_t SubType;
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uint8_t Length[2];
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} EFI_DEVICE_PATH_PROTOCOL;
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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uint32_t PartitionNumber;
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uint64_t PartitionStart;
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uint64_t PartitionSize;
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uint8_t Signature[16];
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uint8_t MBRType;
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uint8_t SignatureType;
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} HARDDRIVE_DEVICE_PATH;
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#define EFI_END_ENTIRE_DEVICE_PATH 0xff
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#define EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE 0xff
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#define EFI_END_INSTANCE_DEVICE_PATH 0x01
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#define EFI_END_DEVICE_PATH_LENGTH (sizeof(EFI_DEVICE_PATH_PROTOCOL))
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#define EfiDevicePathNodeLength(a) (((a)->Length[0]) | ((a)->Length[1] << 8))
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#define EfiNextDevicePathNode(a) \
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((EFI_DEVICE_PATH_PROTOCOL *)(((UINT8 *)(a)) + EfiDevicePathNodeLength(a)))
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#define EfiDevicePathType(a) (((a)->Type) & 0x7f)
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#define EfiIsDevicePathEndType(a) (EfiDevicePathType(a) == 0x7f)
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#define EfiIsDevicePathEndSubType(a) \
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((a)->SubType == EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE)
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#define EfiIsDevicePathEndInstanceSubType(a) \
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((a)->SubType == EFI_END_INSTANCE_DEVICE_PATH)
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#define EfiIsDevicePathEnd(a) \
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(EfiIsDevicePathEndType(a) && EfiIsDevicePathEndSubType(a))
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#define EfiIsDevicePathEndInstance(a) \
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(EfiIsDevicePathEndType(a) && EfiIsDevicePathEndInstanceSubType(a))
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