edd.h

来自「Next BIOS Source code : Extensible Firmw」· C头文件 代码 · 共 217 行

#ifndef _EDD_H
#define _EDD_H
/*++

Copyright (c)  1999 - 2002 Intel Corporation. All rights reserved
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.


Module Name:

    EDD.h

Abstract:

    Include file to suport EDD 3.0.
    This file is coded to T13 D1386 Revision 3
    Availible on http://www.t13.org/#Project drafts
    Currently at ftp://fission.dt.wdc.com/pub/standards/x3t13/project/d1386r3.pdf
    
Revision History

--*/


// packing with no compiler padding, so that the fields
// of the following architected structures can be 
// properly accessed from C code.
#pragma pack(1)
     
typedef struct {
    UINT8   Bus;
    UINT8   Device;
    UINT8   Function;
    UINT8   Controller;
    UINT32  Reserved;
} EDD_PCI;

typedef struct {
    UINT16  Base; 
    UINT16  Reserved;
    UINT32  Reserved2;
} EDD_LEGACY;

typedef union {
    EDD_PCI     Pci;
    EDD_LEGACY  Legacy;
} EDD_INTERFACE_PATH;

typedef struct {
    UINT8   Master;
    UINT8   Reserved[15];
} EDD_ATA;

typedef struct {
    UINT8   Master;
    UINT8   Lun;
    UINT8   Reserved[14];
} EDD_ATAPI;

typedef struct {
    UINT16  Pun;
    UINT64  Lun;
    UINT8   Reserved[6];
} EDD_SCSI;

typedef struct {
    UINT64   SerialNumber;
    UINT64   Reserved;
} EDD_USB;

typedef struct {
    UINT64  Guid;
    UINT64  Reserved;
} EDD_1394;

typedef struct {
    UINT64  Wwn;
    UINT64  Lun;
} EDD_FIBRE;

typedef union {
    EDD_ATA     Ata;
    EDD_ATAPI   Atapi;
    EDD_SCSI    Scsi;
    EDD_USB     Usb;
    EDD_1394    FireWire;
    EDD_FIBRE   FibreChannel;
} EDD_DEVICE_PATH;

typedef struct {
    UINT16              StructureSize;
    UINT16              Flags;
    UINT32              MaxCylinders;
    UINT32              MaxHeads;
    UINT32              SectorsPerTrack;
    UINT64              PhysicalSectors;
    UINT16              BytesPerSector;
    UINT32              FDPT; 
    UINT16              Key;
    UINT8               DevicePathLength;
    UINT8               Reserved1;
    UINT16              Reserved2;
    CHAR8               HostBusType[4];
    CHAR8               InterfaceType[8];
    EDD_INTERFACE_PATH  InterfacePath;
    EDD_DEVICE_PATH     DevicePath;
    UINT8               Reserved3;
    UINT8               Checksum;
} EDD_DRIVE_PARAMETERS;

//
// EDD_DRIVE_PARAMETERS.Flags defines
//
#define EDD_GEOMETRY_VALID          0x02
#define EDD_DEVICE_REMOVABLE        0x04
#define EDD_WRITE_VERIFY_SUPPORTED  0x08
#define EDD_DEVICE_CHANGE           0x10
#define EDD_DEVICE_LOCKABLE         0x20

//
// BugBug: This bit does not follow the spec. It tends to be always set
//  to work properly with Win98.
//
#define EDD_DEVICE_GEOMETRY_MAX     0x40


typedef struct {
    UINT8   PacketSizeInBytes; // 0x18 
    UINT8   Zero;
    UINT8   NumberOfBlocks; // Max 0x7f 
    UINT8   Zero2;
    UINT32  SegOffset;
    UINT64  LBA;
    UINT64  TransferBuffer;
    UINT32  ExtendedBlockCount; // Max 0xffffffff
    UINT32  Zero3;
} EDD_DEVICE_ADDRESS_PACKET;

#define EDD_VERSION_30  0x30

// 
// Int 13 BIOS Errors
//
#define BIOS_PASS                   0x00
#define BIOS_WRITE_PROTECTED        0x03
#define BIOS_SECTOR_NOT_FOUND       0x04
#define BIOS_RESET_FAILED           0x05
#define BIOS_DISK_CHANGED           0x06
#define BIOS_DRIVE_DOES_NOT_EXIST   0x07
#define BIOS_DMA_ERROR              0x08
#define BIOS_DATA_BOUNDRY_ERROR     0x09
#define BIOS_BAD_SECTOR             0x0a
#define BIOS_BAD_TRACK              0x0b
#define BIOS_MEADIA_TYPE_NOT_FOUND  0x0c
#define BIOS_INVALED_FORMAT         0x0d
#define BIOS_ECC_ERROR              0x10
#define BIOS_ECC_CORRECTED_ERROR    0x11
#define BIOS_HARD_DRIVE_FAILURE     0x20
#define BIOS_SEEK_FAILED            0x40
#define BIOS_DRIVE_TIMEOUT          0x80
#define BIOS_DRIVE_NOT_READY        0xaa
#define BIOS_UNDEFINED_ERROR        0xbb
#define BIOS_WRITE_FAULT            0xcc
#define BIOS_SENSE_FAILED           0xff


#define MAX_EDD11_XFER  0xfe00

#pragma pack()

// 
// Internal Data Structures
//

typedef struct {
    CHAR8                   Letter;
    UINT8                   Number; 
    UINT8                   EDDVersion;
    BOOLEAN                 ExtendedInt13;
    BOOLEAN                 DriveLockingAndEjecting;
    BOOLEAN                 EDD; 
    BOOLEAN                 Extensions64Bit;
    BOOLEAN                 ParametersValid;  
    UINT8                   ErrorCode;
    VOID                    *FDPTPointer;
    BOOLEAN                 Floppy;
    BOOLEAN                 ATAPI_Floppy;
    UINT8                   MaxHead;
    UINT8                   MaxSector;
    UINT16                  MaxCylinder;
    UINT16                  Pad;
    EDD_DRIVE_PARAMETERS    Parameters;         
} BIOS_LEGACY_DRIVE;

#define BIOS_CONSOLE_BLK_IO_DEV_SIGNATURE   EFI_SIGNATURE_32('b','b','i','o')
typedef struct {
    UINTN                       Signature;

    EFI_HANDLE                  Handle;
    EFI_BLOCK_IO                BlkIo;
    EFI_BLOCK_IO_MEDIA          BlkMedia;
    EFI_DEVICE_PATH             *DevicePath;

    BIOS_LEGACY_DRIVE           Bios;

} BIOS_BLK_IO_DEV;

#define BIOS_BLK_IO_FROM_THIS(a) CR(a, BIOS_BLK_IO_DEV, BlkIo, BIOS_CONSOLE_BLK_IO_DEV_SIGNATURE)

#endif