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d02d144f | 1 | /** @file\r |
4ca9b6c4 | 2 | UEFI Driver Family Protocol\r |
d02d144f | 3 | \r |
9095d37b | 4 | Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9344f092 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
d02d144f | 6 | \r |
7 | **/\r | |
8 | \r | |
9 | #ifndef __EFI_DRIVER_FAMILY_OVERRIDE_H__\r | |
10 | #define __EFI_DRIVER_FAMILY_OVERRIDE_H__\r | |
11 | \r | |
12 | #define EFI_DRIVER_FAMILY_OVERRIDE_PROTOCOL_GUID \\r | |
13 | { \\r | |
14 | 0xb1ee129e, 0xda36, 0x4181, { 0x91, 0xf8, 0x4, 0xa4, 0x92, 0x37, 0x66, 0xa7 } \\r | |
15 | }\r | |
9095d37b | 16 | \r |
d02d144f | 17 | typedef struct _EFI_DRIVER_FAMILY_OVERRIDE_PROTOCOL EFI_DRIVER_FAMILY_OVERRIDE_PROTOCOL;\r |
18 | \r | |
19 | //\r | |
20 | // Prototypes for the Driver Family Override Protocol\r | |
21 | //\r | |
9095d37b LG |
22 | //\r |
23 | /**\r | |
d02d144f | 24 | This function returns the version value associated with the driver specified by This.\r |
25 | \r | |
26 | Retrieves the version of the driver that is used by the EFI Boot Service ConnectController()\r | |
27 | to sort the set of Driver Binding Protocols in order from highest priority to lowest priority.\r | |
28 | For drivers that support the Driver Family Override Protocol, those drivers are sorted so that\r | |
630b4187 | 29 | the drivers with higher values returned by GetVersion() are higher priority than drivers that\r |
d02d144f | 30 | return lower values from GetVersion().\r |
31 | \r | |
9095d37b LG |
32 | @param This A pointer to the EFI_DRIVER_FAMILY_OVERRIDE_PROTOCOL instance.\r |
33 | \r | |
34 | @return The version value associated with the driver specified by This.\r | |
35 | \r | |
d02d144f | 36 | **/\r |
37 | typedef\r | |
38 | UINT32\r | |
8b13229b | 39 | (EFIAPI *EFI_DRIVER_FAMILY_OVERRIDE_GET_VERSION)(\r |
d02d144f | 40 | IN EFI_DRIVER_FAMILY_OVERRIDE_PROTOCOL *This\r |
41 | );\r | |
42 | \r | |
44717a39 | 43 | ///\r |
9095d37b LG |
44 | /// When installed, the Driver Family Override Protocol produces a GUID that represents\r |
45 | /// a family of drivers. Drivers with the same GUID are members of the same family\r | |
46 | /// When drivers are connected to controllers, drivers with a higher revision value\r | |
47 | /// in the same driver family are connected with a higher priority than drivers\r | |
44717a39 | 48 | /// with a lower revision value in the same driver family. The EFI Boot Service\r |
9095d37b | 49 | /// Connect Controller uses five rules to build a prioritized list of drivers when\r |
44717a39 | 50 | /// a request is made to connect a driver to a controller. The Driver Family Protocol\r |
9095d37b LG |
51 | /// rule is between the Platform Specific Driver Override Protocol and above the\r |
52 | /// Bus Specific Driver Override Protocol.\r | |
44717a39 | 53 | ///\r |
d02d144f | 54 | struct _EFI_DRIVER_FAMILY_OVERRIDE_PROTOCOL {\r |
55 | EFI_DRIVER_FAMILY_OVERRIDE_GET_VERSION GetVersion;\r | |
56 | };\r | |
57 | \r | |
58 | extern EFI_GUID gEfiDriverFamilyOverrideProtocolGuid;\r | |
59 | \r | |
60 | #endif\r |