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      1 /* $NetBSD: efivar.h,v 1.2 2023/05/22 16:27:58 riastradh Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2021 Jared McNeill <jmcneill (at) invisible.ca>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _DEV_EFIVAR_H
     30 #define _DEV_EFIVAR_H
     31 
     32 #include <sys/uuid.h>
     33 #include <sys/types.h>
     34 
     35 #include <machine/efi.h>
     36 
     37 struct efi_ops {
     38 	efi_status	(*efi_gettime)(struct efi_tm *, struct efi_tmcap *);
     39 	efi_status	(*efi_settime)(struct efi_tm *);
     40 	efi_status	(*efi_getvar)(uint16_t *, struct uuid *, uint32_t *,
     41 			    u_long *, void *);
     42 	efi_status	(*efi_setvar)(uint16_t *, struct uuid *, uint32_t,
     43 			    u_long, void *);
     44 	efi_status	(*efi_nextvar)(u_long *, uint16_t *, struct uuid *);
     45 	efi_status	(*efi_gettab)(const struct uuid *, uint64_t *);
     46 };
     47 
     48 void	efi_register_ops(const struct efi_ops *);
     49 
     50 #endif /* !_DEV_EFIVAR_H */
     51