blob: 7d288d5773ca98c0b3f48f2f4a7486e3fd6245ea (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2016 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __VBOOT_VBNV_H__
#define __VBOOT_VBNV_H__
#include <types.h>
/* Generic functions */
void read_vbnv(uint8_t *vbnv_copy);
void save_vbnv(const uint8_t *vbnv_copy);
int verify_vbnv(uint8_t *vbnv_copy);
void regen_vbnv_crc(uint8_t *vbnv_copy);
/* Read the USB Device Controller(UDC) enable flag from VBNV. */
int vbnv_udc_enable_flag(void);
/* Initialize and read vbnv. This is used in the main vboot logic path. */
void vbnv_init(uint8_t *vbnv_copy);
/* Reset vbnv snapshot to a known state. */
void vbnv_reset(uint8_t *vbnv_copy);
/* CMOS backend */
/* Initialize the vbnv cmos backing store. The vbnv_copy pointer is used for
optional temporary storage in the init function. */
void vbnv_init_cmos(uint8_t *vbnv_copy);
/* Return non-zero if cmos power was lost. */
int vbnv_cmos_failed(void);
void read_vbnv_cmos(uint8_t *vbnv_copy);
void save_vbnv_cmos(const uint8_t *vbnv_copy);
/* Flash backend */
void read_vbnv_flash(uint8_t *vbnv_copy);
void save_vbnv_flash(const uint8_t *vbnv_copy);
/* EC backend */
void read_vbnv_ec(uint8_t *vbnv_copy);
void save_vbnv_ec(const uint8_t *vbnv_copy);
#endif /* __VBOOT_VBNV_H__ */
|
