| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #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(void); |
| /* 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__ */ |