include/efi_driver.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 *  EFI application loader
 *
 *  Copyright (c) 2017 Heinrich Schuchardt
 */

#ifndef _EFI_DRIVER_H
#define _EFI_DRIVER_H 1

#include <efi_loader.h>

/*
 * Operations supported by an EFI driver with respect to the EFI uclass
 *
 * @protocol		The GUID of the protocol which is consumed by the
 *			driver. This GUID is used by the EFI uclass in the
 *			supports() and start() methods of the
 *			EFI_DRIVER_BINDING_PROTOCOL.
 * @child_protocol	Protocol supported by the child handles generated by
 *			the EFI driver.
 * @bind		Function called by the EFI uclass to attach the
 *			driver to EFI driver to a handle.
 */
struct efi_driver_ops {
	const efi_guid_t *protocol;
	const efi_guid_t *child_protocol;
	efi_status_t (*bind)(efi_handle_t handle, void *interface);
};

/*
 * This structure adds internal fields to the driver binding protocol.
 */
struct efi_driver_binding_extended_protocol {
	struct efi_driver_binding_protocol bp;
	const struct efi_driver_ops *ops;
};

#endif /* _EFI_DRIVER_H */