BlockIo.h

Go to the documentation of this file.

 
#ifndef _PEI_BLOCK_IO_H_
#define _PEI_BLOCK_IO_H_
 
#define EFI_PEI_RECOVERY_BLOCK_IO_PPI_GUID \
  { \
    0x695d8aa1, 0x42ee, 0x4c46, { 0x80, 0x5c, 0x6e, 0xa6, 0xbc, 0xe7, 0x99, 0xe3 } \
  }
 
typedef struct _EFI_PEI_RECOVERY_BLOCK_IO_PPI  EFI_PEI_RECOVERY_BLOCK_IO_PPI;
 
typedef UINT64  EFI_PEI_LBA;
 
typedef enum {
  LegacyFloppy  = 0,   
  IdeCDROM      = 1,   
  IdeLS120      = 2,   
  UsbMassStorage= 3,   
  SD            = 4,   
  EMMC          = 5,   
  UfsDevice     = 6,   
  MaxDeviceType
} EFI_PEI_BLOCK_DEVICE_TYPE;
 
typedef struct {
  EFI_PEI_BLOCK_DEVICE_TYPE  DeviceType;
  BOOLEAN                    MediaPresent;
  UINTN                      LastBlock;
  UINTN                      BlockSize;
} EFI_PEI_BLOCK_IO_MEDIA;
 
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_GET_NUMBER_BLOCK_DEVICES)(
  IN  EFI_PEI_SERVICES               **PeiServices,
  IN  EFI_PEI_RECOVERY_BLOCK_IO_PPI  *This,
  OUT UINTN                          *NumberBlockDevices
  );
 
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_GET_DEVICE_MEDIA_INFORMATION)(
  IN  EFI_PEI_SERVICES               **PeiServices,
  IN  EFI_PEI_RECOVERY_BLOCK_IO_PPI  *This,
  IN  UINTN                          DeviceIndex,
  OUT EFI_PEI_BLOCK_IO_MEDIA         *MediaInfo
  );
 
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_READ_BLOCKS)(
  IN  EFI_PEI_SERVICES               **PeiServices,
  IN  EFI_PEI_RECOVERY_BLOCK_IO_PPI  *This,
  IN  UINTN                          DeviceIndex,
  IN  EFI_PEI_LBA                    StartLBA,
  IN  UINTN                          BufferSize,
  OUT VOID                           *Buffer
  );
 
struct _EFI_PEI_RECOVERY_BLOCK_IO_PPI {
  EFI_PEI_GET_NUMBER_BLOCK_DEVICES      GetNumberOfBlockDevices;
 
  EFI_PEI_GET_DEVICE_MEDIA_INFORMATION  GetBlockDeviceMediaInfo;
 
  EFI_PEI_READ_BLOCKS                   ReadBlocks;
};
 
extern EFI_GUID gEfiPeiVirtualBlockIoPpiGuid;
 
#endif