mirror of https://github.com/acidanthera/audk.git
89 lines
2.4 KiB
C
89 lines
2.4 KiB
C
/*++
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Copyright (c) 1999 - 2002, 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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Module Name:
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BlockIo.h
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Abstract:
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BlockIo PPI as defined in EFI 2.0
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Used to access block-oriented storage devices
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--*/
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#ifndef _PEI_BLOCK_IO_H_
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#define _PEI_BLOCK_IO_H_
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#define PEI_BLOCK_IO_PPI_GUID \
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{ \
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0x695d8aa1, 0x42ee, 0x4c46, {0x80, 0x5c, 0x6e, 0xa6, 0xbc, 0xe7, 0x99, 0xe3} \
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}
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EFI_FORWARD_DECLARATION (PEI_RECOVERY_BLOCK_IO_INTERFACE);
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typedef UINT64 PEI_LBA;
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typedef enum {
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LegacyFloppy = 0,
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IdeCDROM = 1,
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IdeLS120 = 2,
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UsbMassStorage= 3,
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MaxDeviceType
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} PEI_BLOCK_DEVICE_TYPE;
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typedef struct {
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PEI_BLOCK_DEVICE_TYPE DeviceType;
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BOOLEAN MediaPresent;
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UINTN LastBlock;
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UINTN BlockSize;
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} PEI_BLOCK_IO_MEDIA;
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typedef
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EFI_STATUS
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(EFIAPI *PEI_GET_NUMBER_BLOCK_DEVICES) (
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IN EFI_PEI_SERVICES **PeiServices,
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IN PEI_RECOVERY_BLOCK_IO_INTERFACE * This,
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OUT UINTN *NumberBlockDevices
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);
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typedef
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EFI_STATUS
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(EFIAPI *PEI_GET_DEVICE_MEDIA_INFORMATION) (
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IN EFI_PEI_SERVICES **PeiServices,
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IN PEI_RECOVERY_BLOCK_IO_INTERFACE * This,
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IN UINTN DeviceIndex,
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OUT PEI_BLOCK_IO_MEDIA * MediaInfo
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);
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typedef
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EFI_STATUS
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(EFIAPI *PEI_READ_BLOCKS) (
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IN EFI_PEI_SERVICES **PeiServices,
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IN PEI_RECOVERY_BLOCK_IO_INTERFACE * This,
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IN UINTN DeviceIndex,
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IN PEI_LBA StartLBA,
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IN UINTN BufferSize,
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OUT VOID *Buffer
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);
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struct _PEI_RECOVERY_BLOCK_IO_INTERFACE {
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PEI_GET_NUMBER_BLOCK_DEVICES GetNumberOfBlockDevices;
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PEI_GET_DEVICE_MEDIA_INFORMATION GetBlockDeviceMediaInfo;
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PEI_READ_BLOCKS ReadBlocks;
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};
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extern EFI_GUID gPeiBlockIoPpiGuid;
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#endif
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