| Sughosh Ganu | f552fa4 | 2019-12-29 00:01:05 +0530 | [diff] [blame] | 1 | /* 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 | |
| 21 | struct 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 | |
| 30 | efi_status_t platform_get_rng_device(struct udevice **dev); |
| 31 | |
| 32 | #endif /* _EFI_RNG_H_ */ |