+++ /dev/null
-/** @file\r
- The device path protocol as defined in EFI 1.0.\r
-\r
- The device path represents a programatic path to a device. It's the view\r
- from a software point of view. It also must persist from boot to boot, so \r
- it can not contain things like PCI bus numbers that change from boot to boot.\r
-\r
- Copyright (c) 2006, Intel Corporation \r
- All rights reserved. This program and the accompanying materials \r
- are licensed and made available under the terms and conditions of the BSD License \r
- which accompanies this distribution. The full text of the license may be found at \r
- http://opensource.org/licenses/bsd-license.php \r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
- Module Name: DevicePath.h\r
-\r
-**/\r
-\r
-#ifndef __EFI_DEVICE_PATH_PROTOCOL_H__\r
-#define __EFI_DEVICE_PATH_PROTOCOL_H__\r
-\r
-//\r
-// Device Path protocol\r
-//\r
-#define EFI_DEVICE_PATH_PROTOCOL_GUID \\r
- { \\r
- 0x9576e91, 0x6d3f, 0x11d2, {0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \\r
- }\r
-\r
-#pragma pack(1)\r
-\r
-typedef struct {\r
- UINT8 Type;\r
- UINT8 SubType;\r
- UINT8 Length[2];\r
-} EFI_DEVICE_PATH_PROTOCOL;\r
-\r
-#pragma pack()\r
- \r
-#define EFI_DP_TYPE_MASK 0x7F\r
-#define EFI_DP_TYPE_UNPACKED 0x80\r
-#define END_DEVICE_PATH_TYPE 0x7f\r
- \r
-#define EFI_END_ENTIRE_DEVICE_PATH 0xff\r
-#define EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE 0xff\r
-#define EFI_END_INSTANCE_DEVICE_PATH 0x01\r
-#define END_ENTIRE_DEVICE_PATH_SUBTYPE EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE\r
-#define END_INSTANCE_DEVICE_PATH_SUBTYPE EFI_END_INSTANCE_DEVICE_PATH\r
- \r
-#define EFI_END_DEVICE_PATH_LENGTH (sizeof (EFI_DEVICE_PATH_PROTOCOL))\r
-#define END_DEVICE_PATH_LENGTH EFI_END_DEVICE_PATH_LENGTH\r
- \r
-#define DP_IS_END_TYPE(a) \r
-#define DP_IS_END_SUBTYPE(a) (((a)->SubType == END_ENTIRE_DEVICE_PATH_SUBTYPE)\r
-#define DevicePathSubType(a) ((a)->SubType)\r
-#define IsDevicePathUnpacked(a) ((a)->Type & EFI_DP_TYPE_UNPACKED)\r
- \r
-#define EfiDevicePathNodeLength(a) (((a)->Length[0]) | ((a)->Length[1] << 8))\r
-#define DevicePathNodeLength(a) (EfiDevicePathNodeLength(a))\r
-#define EfiNextDevicePathNode(a) ((EFI_DEVICE_PATH_PROTOCOL *) (((UINT8 *) (a)) + EfiDevicePathNodeLength (a)))\r
-#define NextDevicePathNode(a) (EfiNextDevicePathNode(a)) \r
- \r
-#define EfiDevicePathType(a) (((a)->Type) & EFI_DP_TYPE_MASK)\r
-#define DevicePathType(a) (EfiDevicePathType(a))\r
-#define EfiIsDevicePathEndType(a) (EfiDevicePathType (a) == END_DEVICE_PATH_TYPE)\r
-#define IsDevicePathEndType(a) (EfiIsDevicePathEndType(a)) \r
- \r
- \r
-#define EfiIsDevicePathEndSubType(a) ((a)->SubType == EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE)\r
-#define IsDevicePathEndSubType(a) (EfiIsDevicePathEndSubType(a))\r
-#define EfiIsDevicePathEndInstanceSubType(a) ((a)->SubType == EFI_END_INSTANCE_DEVICE_PATH)\r
- \r
-#define EfiIsDevicePathEnd(a) (EfiIsDevicePathEndType (a) && EfiIsDevicePathEndSubType (a))\r
-#define IsDevicePathEnd(a) (EfiIsDevicePathEnd(a))\r
-#define EfiIsDevicePathEndInstance(a) (EfiIsDevicePathEndType (a) && EfiIsDevicePathEndInstanceSubType (a))\r
-\r
-\r
-#define SetDevicePathNodeLength(a,l) { \\r
- (a)->Length[0] = (UINT8) (l); \\r
- (a)->Length[1] = (UINT8) ((l) >> 8); \\r
- }\r
-\r
-#define SetDevicePathEndNode(a) { \\r
- (a)->Type = END_DEVICE_PATH_TYPE; \\r
- (a)->SubType = END_ENTIRE_DEVICE_PATH_SUBTYPE; \\r
- (a)->Length[0] = sizeof(EFI_DEVICE_PATH_PROTOCOL); \\r
- (a)->Length[1] = 0; \\r
- }\r
-\r
-extern EFI_GUID gEfiDevicePathProtocolGuid;\r
-\r
-#endif\r