blob: 35f59678c7aab046881d88893b8d6d5a7743df5a [file] [log] [blame]
Sughosh Ganuf552fa42019-12-29 00:01:05 +05301/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Copyright (c) 2019, Linaro Limited
4 */
5
6#if !defined _EFI_RNG_H_
7#define _EFI_RNG_H_
8
9#include <efi.h>
10#include <efi_api.h>
11
12/* EFI random number generation protocol related GUID definitions */
13#define EFI_RNG_PROTOCOL_GUID \
14 EFI_GUID(0x3152bca5, 0xeade, 0x433d, 0x86, 0x2e, \
15 0xc0, 0x1c, 0xdc, 0x29, 0x1f, 0x44)
16
17#define EFI_RNG_ALGORITHM_RAW \
18 EFI_GUID(0xe43176d7, 0xb6e8, 0x4827, 0xb7, 0x84, \
19 0x7f, 0xfd, 0xc4, 0xb6, 0x85, 0x61)
20
21struct efi_rng_protocol {
22 efi_status_t (EFIAPI *get_info)(struct efi_rng_protocol *protocol,
23 efi_uintn_t *rng_algorithm_list_size,
24 efi_guid_t *rng_algorithm_list);
25 efi_status_t (EFIAPI *get_rng)(struct efi_rng_protocol *protocol,
26 efi_guid_t *rng_algorithm,
27 efi_uintn_t rng_value_length, uint8_t *rng_value);
28};
29
30efi_status_t platform_get_rng_device(struct udevice **dev);
31
32#endif /* _EFI_RNG_H_ */