mirror of https://github.com/acidanthera/audk.git
545 lines
19 KiB
C
545 lines
19 KiB
C
/** @file
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The device path protocol as defined in EFI 1.0.
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The device path represents a programatic path to a device. It's the view
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from a software point of view. It also must persist from boot to boot, so
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it can not contain things like PCI bus numbers that change from boot to boot.
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Copyright (c) 2006, 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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**/
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#ifndef __EFI_DEVICE_PATH_PROTOCOL_H__
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#define __EFI_DEVICE_PATH_PROTOCOL_H__
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#include <Guid/PcAnsi.h>
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//
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// Device Path protocol
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//
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#define EFI_DEVICE_PATH_PROTOCOL_GUID \
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{ \
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0x9576e91, 0x6d3f, 0x11d2, {0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \
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}
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//
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// Protocol GUID defined in EFI1.1.
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//
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//
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// Device Path information
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//
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#define DEVICE_PATH_PROTOCOL EFI_DEVICE_PATH_PROTOCOL_GUID
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#pragma pack(1)
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typedef struct {
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UINT8 Type;
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UINT8 SubType;
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UINT8 Length[2];
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} EFI_DEVICE_PATH_PROTOCOL;
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//
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// For backward-compatible with EFI1.1.
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//
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typedef EFI_DEVICE_PATH_PROTOCOL EFI_DEVICE_PATH;
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//
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// Hardware Device Paths
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//
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#define HARDWARE_DEVICE_PATH 0x01
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#define HW_PCI_DP 0x01
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT8 Function;
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UINT8 Device;
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} PCI_DEVICE_PATH;
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#define HW_PCCARD_DP 0x02
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT8 FunctionNumber;
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} PCCARD_DEVICE_PATH;
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#define HW_MEMMAP_DP 0x03
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 MemoryType;
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EFI_PHYSICAL_ADDRESS StartingAddress;
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EFI_PHYSICAL_ADDRESS EndingAddress;
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} MEMMAP_DEVICE_PATH;
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#define HW_VENDOR_DP 0x04
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID Guid;
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} VENDOR_DEVICE_PATH;
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#define HW_CONTROLLER_DP 0x05
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 ControllerNumber;
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} CONTROLLER_DEVICE_PATH;
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//
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// ACPI Device Paths
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//
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#define ACPI_DEVICE_PATH 0x02
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#define ACPI_DP 0x01
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 HID;
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UINT32 UID;
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} ACPI_HID_DEVICE_PATH;
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#define ACPI_EXTENDED_DP 0x02
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 HID;
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UINT32 UID;
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UINT32 CID;
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//
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// Optional variable length _HIDSTR
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// Optional variable length _UIDSTR
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//
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} ACPI_EXTENDED_HID_DEVICE_PATH;
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//
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// EISA ID Macro
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// EISA ID Definition 32-bits
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// bits[15:0] - three character compressed ASCII EISA ID.
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// bits[31:16] - binary number
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// Compressed ASCII is 5 bits per character 0b00001 = 'A' 0b11010 = 'Z'
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//
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#define PNP_EISA_ID_CONST 0x41d0
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#define EISA_ID(_Name, _Num) ((UINT32) ((_Name) | (_Num) << 16))
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#define EISA_PNP_ID(_PNPId) (EISA_ID(PNP_EISA_ID_CONST, (_PNPId)))
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#define EFI_PNP_ID(_PNPId) (EISA_ID(PNP_EISA_ID_CONST, (_PNPId)))
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#define PNP_EISA_ID_MASK 0xffff
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#define EISA_ID_TO_NUM(_Id) ((_Id) >> 16)
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#define ACPI_ADR_DP 0x03
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 ADR;
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} ACPI_ADR_DEVICE_PATH;
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//
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// Messaging Device Paths
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//
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#define MESSAGING_DEVICE_PATH 0x03
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#define MSG_ATAPI_DP 0x01
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT8 PrimarySecondary;
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UINT8 SlaveMaster;
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UINT16 Lun;
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} ATAPI_DEVICE_PATH;
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#define MSG_SCSI_DP 0x02
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT16 Pun;
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UINT16 Lun;
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} SCSI_DEVICE_PATH;
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#define MSG_FIBRECHANNEL_DP 0x03
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 Reserved;
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UINT64 WWN;
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UINT64 Lun;
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} FIBRECHANNEL_DEVICE_PATH;
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#define MSG_1394_DP 0x04
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 Reserved;
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UINT64 Guid;
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} F1394_DEVICE_PATH;
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#define MSG_USB_DP 0x05
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT8 ParentPortNumber;
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UINT8 InterfaceNumber;
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} USB_DEVICE_PATH;
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#define MSG_USB_CLASS_DP 0x0f
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT16 VendorId;
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UINT16 ProductId;
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UINT8 DeviceClass;
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UINT8 DeviceSubClass;
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UINT8 DeviceProtocol;
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} USB_CLASS_DEVICE_PATH;
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#define MSG_USB_WWID_DP 0x10
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT16 InterfaceNumber;
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UINT16 VendorId;
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UINT16 ProductId;
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// CHAR16 SerialNumber[...];
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} USB_WWID_DEVICE_PATH;
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#define MSG_DEVICE_LOGICAL_UNIT_DP 0x11
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT8 Lun;
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} DEVICE_LOGICAL_UNIT_DEVICE_PATH;
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#define MSG_SATA_DP 0x12
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT16 HbaPortNumber;
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UINT16 PortMultiplierPort;
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UINT16 LogicalUnitNumber;
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} SATA_DEVICE_PATH;
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#define MSG_I2O_DP 0x06
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 Tid;
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} I2O_DEVICE_PATH;
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#define MSG_MAC_ADDR_DP 0x0b
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_MAC_ADDRESS MacAddress;
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UINT8 IfType;
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} MAC_ADDR_DEVICE_PATH;
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#define MSG_IPv4_DP 0x0c
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_IPv4_ADDRESS LocalIpAddress;
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EFI_IPv4_ADDRESS RemoteIpAddress;
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UINT16 LocalPort;
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UINT16 RemotePort;
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UINT16 Protocol;
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BOOLEAN StaticIpAddress;
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} IPv4_DEVICE_PATH;
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#define MSG_IPv6_DP 0x0d
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_IPv6_ADDRESS LocalIpAddress;
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EFI_IPv6_ADDRESS RemoteIpAddress;
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UINT16 LocalPort;
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UINT16 RemotePort;
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UINT16 Protocol;
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BOOLEAN StaticIpAddress;
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} IPv6_DEVICE_PATH;
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#define MSG_INFINIBAND_DP 0x09
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 ResourceFlags;
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UINT8 PortGid[16];
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UINT64 ServiceId;
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UINT64 TargetPortId;
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UINT64 DeviceId;
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} INFINIBAND_DEVICE_PATH;
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#define INFINIBAND_RESOURCE_FLAG_IOC_SERVICE 0x01
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#define INFINIBAND_RESOURCE_FLAG_EXTENDED_BOOT_ENVIRONMENT 0x02
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#define INFINIBAND_RESOURCE_FLAG_CONSOLE_PROTOCOL 0x04
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#define INFINIBAND_RESOURCE_FLAG_STORAGE_PROTOCOL 0x08
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#define INFINIBAND_RESOURCE_FLAG_NETWORK_PROTOCOL 0x10
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#define MSG_UART_DP 0x0e
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 Reserved;
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UINT64 BaudRate;
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UINT8 DataBits;
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UINT8 Parity;
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UINT8 StopBits;
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} UART_DEVICE_PATH;
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//
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// Use VENDOR_DEVICE_PATH struct
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//
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#define MSG_VENDOR_DP 0x0a
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typedef VENDOR_DEVICE_PATH VENDOR_DEFINED_DEVICE_PATH;
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#define DEVICE_PATH_MESSAGING_PC_ANSI EFI_PC_ANSI_GUID
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#define DEVICE_PATH_MESSAGING_VT_100 EFI_VT_100_GUID
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#define DEVICE_PATH_MESSAGING_VT_100_PLUS EFI_VT_100_PLUS_GUID
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#define DEVICE_PATH_MESSAGING_VT_UTF8 EFI_VT_UTF8_GUID
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#define DEVICE_PATH_MESSAGING_UART_FLOW_CONTROL EFI_UART_DEVICE_PATH_GUID
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID Guid;
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UINT32 FlowControlMap;
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} UART_FLOW_CONTROL_DEVICE_PATH;
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#define DEVICE_PATH_MESSAGING_SAS EFI_SAS_DEVICE_PATH_GUID
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID Guid;
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UINT32 Reserved;
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UINT64 SasAddress;
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UINT64 Lun;
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UINT16 DeviceTopology;
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UINT16 RelativeTargetPort;
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} SAS_DEVICE_PATH;
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#define MSG_ISCSI_DP 0x13
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT16 NetworkProtocol;
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UINT16 LoginOption;
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UINT64 Lun;
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UINT16 TargetPortalGroupTag;
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// CHAR8 iSCSI Target Name
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} ISCSI_DEVICE_PATH;
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#define ISCSI_LOGIN_OPTION_NO_HEADER_DIGEST 0x0000
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#define ISCSI_LOGIN_OPTION_HEADER_DIGEST_USING_CRC32C 0x0002
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#define ISCSI_LOGIN_OPTION_NO_DATA_DIGEST 0x0000
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#define ISCSI_LOGIN_OPTION_DATA_DIGEST_USING_CRC32C 0x0008
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#define ISCSI_LOGIN_OPTION_AUTHMETHOD_CHAP 0x0000
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#define ISCSI_LOGIN_OPTION_AUTHMETHOD_NON 0x1000
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#define ISCSI_LOGIN_OPTION_CHAP_BI 0x0000
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#define ISCSI_LOGIN_OPTION_CHAP_UNI 0x2000
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//
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// Media Device Path
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//
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#define MEDIA_DEVICE_PATH 0x04
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#define MEDIA_HARDDRIVE_DP 0x01
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 PartitionNumber;
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UINT64 PartitionStart;
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UINT64 PartitionSize;
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UINT8 Signature[16];
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UINT8 MBRType;
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UINT8 SignatureType;
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} HARDDRIVE_DEVICE_PATH;
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#define MBR_TYPE_PCAT 0x01
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#define MBR_TYPE_EFI_PARTITION_TABLE_HEADER 0x02
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#define SIGNATURE_TYPE_MBR 0x01
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#define SIGNATURE_TYPE_GUID 0x02
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#define MEDIA_CDROM_DP 0x02
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 BootEntry;
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UINT64 PartitionStart;
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UINT64 PartitionSize;
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} CDROM_DEVICE_PATH;
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//
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// Use VENDOR_DEVICE_PATH struct
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//
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#define MEDIA_VENDOR_DP 0x03
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#define MEDIA_FILEPATH_DP 0x04
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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CHAR16 PathName[1];
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} FILEPATH_DEVICE_PATH;
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#define SIZE_OF_FILEPATH_DEVICE_PATH EFI_FIELD_OFFSET(FILEPATH_DEVICE_PATH,PathName)
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#define MEDIA_PROTOCOL_DP 0x05
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID Protocol;
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} MEDIA_PROTOCOL_DEVICE_PATH;
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#define MEDIA_PIWG_FW_VOL_DP 0x6
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID FvName;
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} MEDIA_FW_VOL_DEVICE_PATH;
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#define MEDIA_PIWG_FW_FILE_DP 0x7
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID FvFileName;
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} MEDIA_FW_VOL_FILEPATH_DEVICE_PATH;
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//
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// BBS Device Path
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//
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#define BBS_DEVICE_PATH 0x05
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#define BBS_BBS_DP 0x01
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT16 DeviceType;
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UINT16 StatusFlag;
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CHAR8 String[1];
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} BBS_BBS_DEVICE_PATH;
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//
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// DeviceType definitions - from BBS specification
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//
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#define BBS_TYPE_FLOPPY 0x01
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#define BBS_TYPE_HARDDRIVE 0x02
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#define BBS_TYPE_CDROM 0x03
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#define BBS_TYPE_PCMCIA 0x04
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#define BBS_TYPE_USB 0x05
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#define BBS_TYPE_EMBEDDED_NETWORK 0x06
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#define BBS_TYPE_BEV 0x80
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#define BBS_TYPE_UNKNOWN 0xFF
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//
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// Union of all possible Device Paths and pointers to Device Paths
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//
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typedef union {
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EFI_DEVICE_PATH_PROTOCOL DevPath;
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PCI_DEVICE_PATH Pci;
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PCCARD_DEVICE_PATH PcCard;
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MEMMAP_DEVICE_PATH MemMap;
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VENDOR_DEVICE_PATH Vendor;
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CONTROLLER_DEVICE_PATH Controller;
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ACPI_HID_DEVICE_PATH Acpi;
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ATAPI_DEVICE_PATH Atapi;
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SCSI_DEVICE_PATH Scsi;
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FIBRECHANNEL_DEVICE_PATH FibreChannel;
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F1394_DEVICE_PATH F1394;
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USB_DEVICE_PATH Usb;
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SATA_DEVICE_PATH Sata;
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USB_CLASS_DEVICE_PATH UsbClass;
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I2O_DEVICE_PATH I2O;
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MAC_ADDR_DEVICE_PATH MacAddr;
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IPv4_DEVICE_PATH Ipv4;
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IPv6_DEVICE_PATH Ipv6;
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INFINIBAND_DEVICE_PATH InfiniBand;
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UART_DEVICE_PATH Uart;
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HARDDRIVE_DEVICE_PATH HardDrive;
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CDROM_DEVICE_PATH CD;
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FILEPATH_DEVICE_PATH FilePath;
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MEDIA_PROTOCOL_DEVICE_PATH MediaProtocol;
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BBS_BBS_DEVICE_PATH Bbs;
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} EFI_DEV_PATH;
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typedef union {
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EFI_DEVICE_PATH_PROTOCOL *DevPath;
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PCI_DEVICE_PATH *Pci;
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PCCARD_DEVICE_PATH *PcCard;
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MEMMAP_DEVICE_PATH *MemMap;
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VENDOR_DEVICE_PATH *Vendor;
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CONTROLLER_DEVICE_PATH *Controller;
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ACPI_HID_DEVICE_PATH *Acpi;
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ACPI_EXTENDED_HID_DEVICE_PATH *ExtendedAcpi;
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ATAPI_DEVICE_PATH *Atapi;
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SCSI_DEVICE_PATH *Scsi;
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FIBRECHANNEL_DEVICE_PATH *FibreChannel;
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F1394_DEVICE_PATH *F1394;
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USB_DEVICE_PATH *Usb;
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SATA_DEVICE_PATH *Sata;
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USB_CLASS_DEVICE_PATH *UsbClass;
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I2O_DEVICE_PATH *I2O;
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MAC_ADDR_DEVICE_PATH *MacAddr;
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IPv4_DEVICE_PATH *Ipv4;
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IPv6_DEVICE_PATH *Ipv6;
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INFINIBAND_DEVICE_PATH *InfiniBand;
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UART_DEVICE_PATH *Uart;
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HARDDRIVE_DEVICE_PATH *HardDrive;
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CDROM_DEVICE_PATH *CD;
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FILEPATH_DEVICE_PATH *FilePath;
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MEDIA_PROTOCOL_DEVICE_PATH *MediaProtocol;
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BBS_BBS_DEVICE_PATH *Bbs;
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UINT8 *Raw;
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} EFI_DEV_PATH_PTR;
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#pragma pack()
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#define EFI_DP_TYPE_MASK 0x7F
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#define EFI_DP_TYPE_UNPACKED 0x80
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#define END_DEVICE_PATH_TYPE 0x7f
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#define EFI_END_ENTIRE_DEVICE_PATH 0xff
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#define EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE 0xff
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#define EFI_END_INSTANCE_DEVICE_PATH 0x01
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#define END_ENTIRE_DEVICE_PATH_SUBTYPE EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE
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#define END_INSTANCE_DEVICE_PATH_SUBTYPE EFI_END_INSTANCE_DEVICE_PATH
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#define EFI_END_DEVICE_PATH_LENGTH (sizeof (EFI_DEVICE_PATH_PROTOCOL))
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#define END_DEVICE_PATH_LENGTH EFI_END_DEVICE_PATH_LENGTH
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#define DP_IS_END_TYPE(a)
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#define DP_IS_END_SUBTYPE(a) (((a)->SubType == END_ENTIRE_DEVICE_PATH_SUBTYPE)
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#define DevicePathSubType(a) ((a)->SubType)
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#define IsDevicePathUnpacked(a) ((a)->Type & EFI_DP_TYPE_UNPACKED)
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#define EfiDevicePathNodeLength(a) (((a)->Length[0]) | ((a)->Length[1] << 8))
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#define DevicePathNodeLength(a) (EfiDevicePathNodeLength(a))
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#define EfiNextDevicePathNode(a) ((EFI_DEVICE_PATH_PROTOCOL *) (((UINT8 *) (a)) + EfiDevicePathNodeLength (a)))
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#define NextDevicePathNode(a) (EfiNextDevicePathNode(a))
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#define EfiDevicePathType(a) (((a)->Type) & EFI_DP_TYPE_MASK)
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#define DevicePathType(a) (EfiDevicePathType(a))
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#define EfiIsDevicePathEndType(a) (EfiDevicePathType (a) == END_DEVICE_PATH_TYPE)
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#define IsDevicePathEndType(a) (EfiIsDevicePathEndType(a))
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#define EfiIsDevicePathEndSubType(a) ((a)->SubType == EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE)
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#define IsDevicePathEndSubType(a) (EfiIsDevicePathEndSubType(a))
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#define EfiIsDevicePathEndInstanceSubType(a) ((a)->SubType == EFI_END_INSTANCE_DEVICE_PATH)
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#define EfiIsDevicePathEnd(a) (EfiIsDevicePathEndType (a) && EfiIsDevicePathEndSubType (a))
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#define IsDevicePathEnd(a) (EfiIsDevicePathEnd(a))
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#define EfiIsDevicePathEndInstance(a) (EfiIsDevicePathEndType (a) && EfiIsDevicePathEndInstanceSubType (a))
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#define SetDevicePathNodeLength(a,l) { \
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(a)->Length[0] = (UINT8) (l); \
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(a)->Length[1] = (UINT8) ((l) >> 8); \
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}
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#define SetDevicePathEndNode(a) { \
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(a)->Type = END_DEVICE_PATH_TYPE; \
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(a)->SubType = END_ENTIRE_DEVICE_PATH_SUBTYPE; \
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(a)->Length[0] = sizeof(EFI_DEVICE_PATH_PROTOCOL); \
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(a)->Length[1] = 0; \
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}
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extern EFI_GUID gEfiDevicePathProtocolGuid;
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#endif
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