/* 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); /* Platform-specific CMOS init function, called by vbnv_init_cmos(). */ void vbnv_platform_init_cmos(void); /* 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__ */