1 /*++ 2 3 Copyright (c) 1999 - 2002, Intel Corporation. All rights reserved.<BR> 4 This program and the accompanying materials 5 are licensed and made available under the terms and conditions of the BSD License 6 which accompanies this distribution. The full text of the license may be found at 7 http://opensource.org/licenses/bsd-license.php 8 9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 12 13 Module Name: 14 15 BlockIo.h 16 17 Abstract: 18 19 BlockIo PPI as defined in EFI 2.0 20 21 Used to access block-oriented storage devices 22 23 --*/ 24 25 #ifndef _PEI_BLOCK_IO_H_ 26 #define _PEI_BLOCK_IO_H_ 27 28 #define PEI_BLOCK_IO_PPI_GUID \ 29 { \ 30 0x695d8aa1, 0x42ee, 0x4c46, {0x80, 0x5c, 0x6e, 0xa6, 0xbc, 0xe7, 0x99, 0xe3} \ 31 } 32 33 EFI_FORWARD_DECLARATION (PEI_RECOVERY_BLOCK_IO_INTERFACE); 34 35 typedef UINT64 PEI_LBA; 36 37 typedef enum { 38 LegacyFloppy = 0, 39 IdeCDROM = 1, 40 IdeLS120 = 2, 41 UsbMassStorage= 3, 42 MaxDeviceType 43 } PEI_BLOCK_DEVICE_TYPE; 44 45 typedef struct { 46 PEI_BLOCK_DEVICE_TYPE DeviceType; 47 BOOLEAN MediaPresent; 48 UINTN LastBlock; 49 UINTN BlockSize; 50 } PEI_BLOCK_IO_MEDIA; 51 52 typedef 53 EFI_STATUS 54 (EFIAPI *PEI_GET_NUMBER_BLOCK_DEVICES) ( 55 IN EFI_PEI_SERVICES **PeiServices, 56 IN PEI_RECOVERY_BLOCK_IO_INTERFACE * This, 57 OUT UINTN *NumberBlockDevices 58 ); 59 60 typedef 61 EFI_STATUS 62 (EFIAPI *PEI_GET_DEVICE_MEDIA_INFORMATION) ( 63 IN EFI_PEI_SERVICES **PeiServices, 64 IN PEI_RECOVERY_BLOCK_IO_INTERFACE * This, 65 IN UINTN DeviceIndex, 66 OUT PEI_BLOCK_IO_MEDIA * MediaInfo 67 ); 68 69 typedef 70 EFI_STATUS 71 (EFIAPI *PEI_READ_BLOCKS) ( 72 IN EFI_PEI_SERVICES **PeiServices, 73 IN PEI_RECOVERY_BLOCK_IO_INTERFACE * This, 74 IN UINTN DeviceIndex, 75 IN PEI_LBA StartLBA, 76 IN UINTN BufferSize, 77 OUT VOID *Buffer 78 ); 79 80 struct _PEI_RECOVERY_BLOCK_IO_INTERFACE { 81 PEI_GET_NUMBER_BLOCK_DEVICES GetNumberOfBlockDevices; 82 PEI_GET_DEVICE_MEDIA_INFORMATION GetBlockDeviceMediaInfo; 83 PEI_READ_BLOCKS ReadBlocks; 84 }; 85 86 extern EFI_GUID gPeiBlockIoPpiGuid; 87 88 #endif 89