efidevp.h

#ifndef _DEVPATH_H
#define _DEVPATH_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:

    devpath.h

Abstract:

    Defines for parsing the EFI Device Path structures



Revision History

--*/

//
// Device Path structures - Section C
//

#pragma pack(1)

typedef struct _EFI_DEVICE_PATH {
        UINT8                           Type;
        UINT8                           SubType;
        UINT8                           Length[2];
} EFI_DEVICE_PATH;

#define EFI_DP_TYPE_MASK                    0x7F
#define EFI_DP_TYPE_UNPACKED                0x80

#define END_DEVICE_PATH_TYPE                0x7f

#define END_ENTIRE_DEVICE_PATH_SUBTYPE      0xff
#define END_INSTANCE_DEVICE_PATH_SUBTYPE    0x01
#define END_DEVICE_PATH_LENGTH              (sizeof(EFI_DEVICE_PATH))


#define DP_IS_END_TYPE(a)
#define DP_IS_END_SUBTYPE(a)        ( ((a)->SubType == END_ENTIRE_DEVICE_PATH_SUBTYPE )

#define DevicePathType(a)           ( ((a)->Type) & EFI_DP_TYPE_MASK )
#define DevicePathSubType(a)        ( (a)->SubType )
#define DevicePathNodeLength(a)     ((size_t)(((a)->Length[0]) | ((a)->Length[1] << 8)))
#define NextDevicePathNode(a)       ( (EFI_DEVICE_PATH *) ( ((UINT8 *) (a)) + DevicePathNodeLength(a)))
#define IsDevicePathType(a, t)      ( DevicePathType(a) == t )
#define IsDevicePathEndType(a)      IsDevicePathType(a, END_DEVICE_PATH_TYPE)
#define IsDevicePathEndSubType(a)   ( (a)->SubType == END_ENTIRE_DEVICE_PATH_SUBTYPE )
#define IsDevicePathEnd(a)          ( IsDevicePathEndType(a) && IsDevicePathEndSubType(a) )
#define IsDevicePathUnpacked(a)     ( (a)->Type & EFI_DP_TYPE_UNPACKED )


#define SetDevicePathNodeLength(a,l) {                  \
            (a)->Length[0] = (UINT8) (l);               \
            (a)->Length[1] = (UINT8) ((l) >> 8);        \
            }

#define SetDevicePathEndNode(a)  {                      \
            (a)->Type = END_DEVICE_PATH_TYPE;           \
            (a)->SubType = END_ENTIRE_DEVICE_PATH_SUBTYPE;     \
            (a)->Length[0] = sizeof(EFI_DEVICE_PATH);   \
            (a)->Length[1] = 0;                         \
            }

/*
 *
 */
#define HARDWARE_DEVICE_PATH            0x01

#define HW_PCI_DP                       0x01
typedef struct _PCI_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT8                           Function;
        UINT8                           Device;
} PCI_DEVICE_PATH;

#define HW_PCCARD_DP                    0x02
typedef struct _PCCARD_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT8                           FunctionNumber;
} PCCARD_DEVICE_PATH;

#define HW_MEMMAP_DP                    0x03
typedef struct _MEMMAP_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT32                          MemoryType;
        EFI_PHYSICAL_ADDRESS            StartingAddress;
        EFI_PHYSICAL_ADDRESS            EndingAddress;
} MEMMAP_DEVICE_PATH;

#define HW_VENDOR_DP                    0x04
typedef struct _VENDOR_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        EFI_GUID                        Guid;
} VENDOR_DEVICE_PATH;

#define UNKNOWN_DEVICE_GUID \
    { 0xcf31fac5, 0xc24e, 0x11d2, {0x85, 0xf3, 0x0, 0xa0, 0xc9, 0x3e, 0xc9, 0x3b} }

typedef struct _UKNOWN_DEVICE_VENDOR_DP {
    VENDOR_DEVICE_PATH      DevicePath;
    UINT8                   LegacyDriveLetter;
} UNKNOWN_DEVICE_VENDOR_DEVICE_PATH;

#define HW_CONTROLLER_DP            0x05
typedef struct _CONTROLLER_DEVICE_PATH {
        EFI_DEVICE_PATH     Header;
        UINT32              Controller;
} CONTROLLER_DEVICE_PATH;

/*
 *
 */
#define ACPI_DEVICE_PATH                 0x02

#define ACPI_DP                         0x01
typedef struct _ACPI_HID_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT32                          HID;
        UINT32                          UID;
} ACPI_HID_DEVICE_PATH;

#define ACPI_EXTENDED_DP          0x02
typedef struct _ACPI_EXTENDED_HID_DEVICE_PATH {
  EFI_DEVICE_PATH                 Header;
  UINT32                          HID;
  UINT32                          UID;
  UINT32                          CID;
} ACPI_EXTENDED_HID_DEVICE_PATH;

#define ACPI_ADR_DP                         0x03
/* ACPI_ADR_DEVICE_PATH not defined */

//
// EISA ID Macro
// EISA ID Definition 32-bits
//  bits[15:0] - three character compressed ASCII EISA ID.
//  bits[31:16] - binary number
//   Compressed ASCII is 5 bits per character 0b00001 = 'A' 0b11010 = 'Z'
//
#define PNP_EISA_ID_CONST       0x41d0
#define EISA_ID(_Name, _Num)    ((UINT32) ((_Name) | (_Num) << 16))
#define EISA_PNP_ID(_PNPId)     (EISA_ID(PNP_EISA_ID_CONST, (_PNPId)))
#define EFI_PNP_ID(_PNPId)      (EISA_ID(PNP_EISA_ID_CONST, (_PNPId)))

#define PNP_EISA_ID_MASK        0xffff
#define EISA_ID_TO_NUM(_Id)     ((_Id) >> 16)
/*
 *
 */
#define MESSAGING_DEVICE_PATH           0x03

#define MSG_ATAPI_DP                    0x01
typedef struct _ATAPI_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT8                           PrimarySecondary;
        UINT8                           SlaveMaster;
        UINT16                          Lun;
} ATAPI_DEVICE_PATH;

#define MSG_SCSI_DP                     0x02
typedef struct _SCSI_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT16                          Pun;
        UINT16                          Lun;
} SCSI_DEVICE_PATH;

#define MSG_FIBRECHANNEL_DP             0x03
typedef struct _FIBRECHANNEL_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT32                          Reserved;
        UINT64                          WWN;
        UINT64                          Lun;
} FIBRECHANNEL_DEVICE_PATH;

#define MSG_1394_DP                     0x04
typedef struct _F1394_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT32                          Reserved;
        UINT64                          Guid;
} F1394_DEVICE_PATH;

#define MSG_USB_DP                      0x05
typedef struct _USB_DEVICE_PATH {
    EFI_DEVICE_PATH                     Header;
    UINT8					                      ParentPortNumber;
    UINT8					                      InterfaceNumber;
} USB_DEVICE_PATH;

#define MSG_USB_CLASS_DP                0x0F
typedef struct _USB_CLASS_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT16                          VendorId;
        UINT16                          ProductId;
        UINT8                           DeviceClass;
        UINT8                           DeviceSubClass;
        UINT8                           DeviceProtocol;
} USB_CLASS_DEVICE_PATH;

#define MSG_I2O_DP                      0x06
typedef struct _I2O_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT32                          Tid;
} I2O_DEVICE_PATH;

#define MSG_MAC_ADDR_DP                 0x0b
typedef struct _MAC_ADDR_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        EFI_MAC_ADDRESS                 MacAddress;
        UINT8                           IfType;
} MAC_ADDR_DEVICE_PATH;

#define MSG_IPv4_DP                     0x0c
typedef struct _IPv4_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        EFI_IPv4_ADDRESS                LocalIpAddress;
        EFI_IPv4_ADDRESS                RemoteIpAddress;
        UINT16                          LocalPort;
        UINT16                          RemotePort;
        UINT16                          Protocol;
        BOOLEAN                         StaticIpAddress;
        EFI_IPv4_ADDRESS                GatewayIpAddress;
        EFI_IPv4_ADDRESS                SubnetMask;
} IPv4_DEVICE_PATH;

#define MSG_IPv6_DP                     0x0d
typedef struct _IPv6_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        EFI_IPv6_ADDRESS                LocalIpAddress;
        EFI_IPv6_ADDRESS                RemoteIpAddress;
        UINT16                          LocalPort;
        UINT16                          RemotePort;
        UINT16                          Protocol;
        BOOLEAN                         StaticIpAddress;
} IPv6_DEVICE_PATH;

#define MSG_INFINIBAND_DP               0x09
typedef struct _INFINIBAND_DEVICE_PATH {
  EFI_DEVICE_PATH                       Header;
  UINT32                                ResourceFlags;
  UINT8                                 PortGid[16];
  UINT64                                ServiceId;
  UINT64                                TargetPortId;
  UINT64                                DeviceId;
} INFINIBAND_DEVICE_PATH;

#define INFINIBAND_RESOURCE_FLAG_IOC_SERVICE                0x01
#define INFINIBAND_RESOURCE_FLAG_EXTENDED_BOOT_ENVIRONMENT  0x02
#define INFINIBAND_RESOURCE_FLAG_CONSOLE_PROTOCOL           0x04
#define INFINIBAND_RESOURCE_FLAG_STORAGE_PROTOCOL           0x08
#define INFINIBAND_RESOURCE_FLAG_NETWORK_PROTOCOL           0x10

#define MSG_UART_DP                     0x0e
typedef struct _UART_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT32                          Reserved;
        UINT64                          BaudRate;
        UINT8                           DataBits;
        UINT8                           Parity;
        UINT8                           StopBits;
} UART_DEVICE_PATH;

#define MSG_VENDOR_DP                   0x0A
/* Use VENDOR_DEVICE_PATH struct */

#define DEVICE_PATH_MESSAGING_PC_ANSI \
    { 0xe0c14753, 0xf9be, 0x11d2, {0x9a, 0x0c, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d} }

#define DEVICE_PATH_MESSAGING_VT_100 \
    { 0xdfa66065, 0xb419, 0x11d3, {0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d} }

#define DEVICE_PATH_MESSAGING_VT_100_PLUS \
    { 0x7baec70b, 0x57e0, 0x4c76, {0x8e, 0x87, 0x2f, 0x9e, 0x28, 0x08, 0x83, 0x43} }

#define DEVICE_PATH_MESSAGING_VT_UTF8 \
    { 0xad15a0d6, 0x8bec, 0x4acf, {0xa0, 0x73, 0xd0, 0x1d, 0xe7, 0x7e, 0x2d, 0x88} }

/* Device Logical Unit SubType. */
#define	MSG_DEVICE_LOGICAL_UNIT_DP	0x11
typedef struct {
	EFI_DEVICE_PATH			Header;
	/* Logical Unit Number for the interface. */
	UINT8				Lun;
} DEVICE_LOGICAL_UNIT_DEVICE_PATH;

#define MSG_SATA_DP			0x12
typedef struct _SATA_DEVICE_PATH {
	EFI_DEVICE_PATH			Header;
	UINT16				HBAPortNumber;
	UINT16				PortMultiplierPortNumber;
	UINT16				Lun;
} SATA_DEVICE_PATH;


/* DNS Device Path SubType */
#define MSG_DNS_DP                0x1F
typedef struct {
  EFI_DEVICE_PATH                 Header;
  /* Indicates the DNS server address is IPv4 or IPv6 address. */
  UINT8                           IsIPv6;
  /* Instance of the DNS server address. */
  /* XXX: actually EFI_IP_ADDRESS */
  EFI_IPv4_ADDRESS                DnsServerIp[];
} DNS_DEVICE_PATH;

/* Uniform Resource Identifiers (URI) Device Path SubType */
#define MSG_URI_DP                0x18
typedef struct {
  EFI_DEVICE_PATH                 Header;
  /* Instance of the URI pursuant to RFC 3986. */
  CHAR8                           Uri[];
} URI_DEVICE_PATH;

#define MEDIA_DEVICE_PATH               0x04

#define MEDIA_HARDDRIVE_DP              0x01
typedef struct _HARDDRIVE_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT32                          PartitionNumber;
        UINT64                          PartitionStart;
        UINT64                          PartitionSize;
        UINT8                           Signature[16];
        UINT8                           MBRType;
        UINT8                           SignatureType;
} HARDDRIVE_DEVICE_PATH;

#define MBR_TYPE_PCAT                       0x01
#define MBR_TYPE_EFI_PARTITION_TABLE_HEADER 0x02

#define SIGNATURE_TYPE_MBR                  0x01
#define SIGNATURE_TYPE_GUID                 0x02

#define MEDIA_CDROM_DP                  0x02
typedef struct _CDROM_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT32                          BootEntry;
        UINT64                          PartitionStart;
        UINT64                          PartitionSize;
} CDROM_DEVICE_PATH;

#define MEDIA_VENDOR_DP                 0x03
/* Use VENDOR_DEVICE_PATH struct */

#define MEDIA_FILEPATH_DP               0x04
typedef struct _FILEPATH_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        CHAR16                          PathName[1];
} FILEPATH_DEVICE_PATH;

#define SIZE_OF_FILEPATH_DEVICE_PATH EFI_FIELD_OFFSET(FILEPATH_DEVICE_PATH,PathName)

#define MEDIA_PROTOCOL_DP               0x05
typedef struct _MEDIA_PROTOCOL_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        EFI_GUID                        Protocol;
} MEDIA_PROTOCOL_DEVICE_PATH;


#define BBS_DEVICE_PATH                 0x05
#define BBS_BBS_DP                      0x01
typedef struct _BBS_BBS_DEVICE_PATH {
        EFI_DEVICE_PATH                 Header;
        UINT16                          DeviceType;
        UINT16                          StatusFlag;
        CHAR8                           String[1];
} BBS_BBS_DEVICE_PATH;

/* DeviceType definitions - from BBS specification */
#define BBS_TYPE_FLOPPY                 0x01
#define BBS_TYPE_HARDDRIVE              0x02
#define BBS_TYPE_CDROM                  0x03
#define BBS_TYPE_PCMCIA                 0x04
#define BBS_TYPE_USB                    0x05
#define BBS_TYPE_EMBEDDED_NETWORK       0x06
#define BBS_TYPE_DEV                    0x80
#define BBS_TYPE_UNKNOWN                0xFF

typedef union {
    EFI_DEVICE_PATH                      DevPath;
    PCI_DEVICE_PATH                      Pci;
    PCCARD_DEVICE_PATH                   PcCard;
    MEMMAP_DEVICE_PATH                   MemMap;
    VENDOR_DEVICE_PATH                   Vendor;
    UNKNOWN_DEVICE_VENDOR_DEVICE_PATH    UnknownVendor;
    CONTROLLER_DEVICE_PATH               Controller;
    ACPI_HID_DEVICE_PATH                 Acpi;

    ATAPI_DEVICE_PATH                    Atapi;
    SCSI_DEVICE_PATH                     Scsi;
    FIBRECHANNEL_DEVICE_PATH             FibreChannel;

    F1394_DEVICE_PATH                    F1394;
    USB_DEVICE_PATH                      Usb;
    USB_CLASS_DEVICE_PATH                UsbClass;
    I2O_DEVICE_PATH                      I2O;
    MAC_ADDR_DEVICE_PATH                 MacAddr;
    IPv4_DEVICE_PATH                     Ipv4;
    IPv6_DEVICE_PATH                     Ipv6;
    INFINIBAND_DEVICE_PATH               InfiniBand;
    UART_DEVICE_PATH                     Uart;

    HARDDRIVE_DEVICE_PATH                HardDrive;
    CDROM_DEVICE_PATH                    CD;

    FILEPATH_DEVICE_PATH                 FilePath;
    MEDIA_PROTOCOL_DEVICE_PATH           MediaProtocol;

    BBS_BBS_DEVICE_PATH                  Bbs;

} EFI_DEV_PATH;

typedef union {
    EFI_DEVICE_PATH                      *DevPath;
    PCI_DEVICE_PATH                      *Pci;
    PCCARD_DEVICE_PATH                   *PcCard;
    MEMMAP_DEVICE_PATH                   *MemMap;
    VENDOR_DEVICE_PATH                   *Vendor;
    UNKNOWN_DEVICE_VENDOR_DEVICE_PATH    *UnknownVendor;
    CONTROLLER_DEVICE_PATH               *Controller;
    ACPI_HID_DEVICE_PATH                 *Acpi;
    ACPI_EXTENDED_HID_DEVICE_PATH        *ExtendedAcpi;

    ATAPI_DEVICE_PATH                    *Atapi;
    SCSI_DEVICE_PATH                     *Scsi;
    FIBRECHANNEL_DEVICE_PATH             *FibreChannel;

    F1394_DEVICE_PATH                    *F1394;
    USB_DEVICE_PATH                      *Usb;
    USB_CLASS_DEVICE_PATH                *UsbClass;
    I2O_DEVICE_PATH                      *I2O;
    MAC_ADDR_DEVICE_PATH                 *MacAddr;
    IPv4_DEVICE_PATH                     *Ipv4;
    IPv6_DEVICE_PATH                     *Ipv6;
    INFINIBAND_DEVICE_PATH               *InfiniBand;
    UART_DEVICE_PATH                     *Uart;

    HARDDRIVE_DEVICE_PATH                *HardDrive;

    FILEPATH_DEVICE_PATH                 *FilePath;
    MEDIA_PROTOCOL_DEVICE_PATH           *MediaProtocol;

    CDROM_DEVICE_PATH                    *CD;
    BBS_BBS_DEVICE_PATH                  *Bbs;

} EFI_DEV_PATH_PTR;

#define	EFI_LOADED_IMAGE_DEVICE_PATH_PROTOCOL_GUID			\
    { 0xbc62157e, 0x3e33, 0x4fec, { 0x99, 0x20, 0x2d, 0x3b, 0x36, 0xd7, 0x50, 0xdf } }

#define	EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID				\
    { 0x8b843e20, 0x8132, 0x4852, { 0x90, 0xcc, 0x55, 0x1a, 0x4e, 0x4a, 0x7f, 0x1c } }

#define EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL_GUID				\
    { 0x05c99a21, 0xc70f, 0x4ad2, { 0x8a, 0x5f, 0x35, 0xdf, 0x33, 0x43, 0xf5, 0x1e } }

INTERFACE_DECL(_EFI_DEVICE_PATH_PROTOCOL);

typedef
CHAR16*
(EFIAPI *EFI_DEVICE_PATH_TO_TEXT_NODE) (
    IN struct _EFI_DEVICE_PATH *This,
    IN BOOLEAN                 DisplayOnly,
    IN BOOLEAN                 AllowShortCuts
    );

typedef
CHAR16*
(EFIAPI *EFI_DEVICE_PATH_TO_TEXT_PATH) (
    IN struct _EFI_DEVICE_PATH *This,
    IN BOOLEAN                 DisplayOnly,
    IN BOOLEAN                 AllowShortCuts
    );

typedef struct _EFI_DEVICE_PATH_TO_TEXT_PROTOCOL {
	EFI_DEVICE_PATH_TO_TEXT_NODE ConvertDeviceNodeToText;
	EFI_DEVICE_PATH_TO_TEXT_PATH ConvertDevicePathToText;
} EFI_DEVICE_PATH_TO_TEXT_PROTOCOL;

typedef
struct _EFI_DEVICE_PATH*
(EFIAPI *EFI_DEVICE_PATH_FROM_TEXT_NODE) (
    IN CONST CHAR16* TextDeviceNode
    );
typedef
struct _EFI_DEVICE_PATH*
(EFIAPI *EFI_DEVICE_PATH_FROM_TEXT_PATH) (
    IN CONST CHAR16* TextDevicePath
    );


typedef struct _EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL {
	EFI_DEVICE_PATH_FROM_TEXT_NODE ConvertTextToDeviceNode;
	EFI_DEVICE_PATH_FROM_TEXT_PATH ConvertTextToDevicePath;
} EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL;

#pragma pack()

#endif