1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  *  EFI application loader
4  *
5  *  Copyright (c) 2017 Heinrich Schuchardt
6  */
7 
8 #ifndef _EFI_DRIVER_H
9 #define _EFI_DRIVER_H 1
10 
11 #include <efi_loader.h>
12 
13 /*
14  * Operations supported by an EFI driver with respect to the EFI uclass
15  *
16  * @protocol		The GUID of the protocol which is consumed by the
17  *			driver. This GUID is used by the EFI uclass in the
18  *			supports() and start() methods of the
19  *			EFI_DRIVER_BINDING_PROTOCOL.
20  * @child_protocol	Protocol supported by the child handles generated by
21  *			the EFI driver.
22  * @bind		Function called by the EFI uclass to attach the
23  *			driver to EFI driver to a handle.
24  */
25 struct efi_driver_ops {
26 	const efi_guid_t *protocol;
27 	const efi_guid_t *child_protocol;
28 	int (*bind)(efi_handle_t handle, void *interface);
29 };
30 
31 /*
32  * This structure adds internal fields to the driver binding protocol.
33  */
34 struct efi_driver_binding_extended_protocol {
35 	struct efi_driver_binding_protocol bp;
36 	const struct efi_driver_ops *ops;
37 };
38 
39 #endif /* _EFI_DRIVER_H */
40