40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __VBOOT_VBNV_H__
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#define __VBOOT_VBNV_H__
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#include <types.h>
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/* Generic functions */
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void read_vbnv(uint8_t *vbnv_copy);
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void save_vbnv(const uint8_t *vbnv_copy);
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int verify_vbnv(uint8_t *vbnv_copy);
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void regen_vbnv_crc(uint8_t *vbnv_copy);
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/* Read the USB Device Controller(UDC) enable flag from VBNV. */
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int vbnv_udc_enable_flag(void);
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/* Initialize and read vbnv. This is used in the main vboot logic path. */
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void vbnv_init(uint8_t *vbnv_copy);
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/* Reset vbnv snapshot to a known state. */
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void vbnv_reset(uint8_t *vbnv_copy);
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/* CMOS backend */
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/* Initialize the vbnv CMOS backing store. The vbnv_copy pointer is used for
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optional temporary storage in the init function. */
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void vbnv_init_cmos(uint8_t *vbnv_copy);
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/* Return non-zero if CMOS power was lost. */
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int vbnv_cmos_failed(void);
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void read_vbnv_cmos(uint8_t *vbnv_copy);
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void save_vbnv_cmos(const uint8_t *vbnv_copy);
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/* Flash backend */
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void read_vbnv_flash(uint8_t *vbnv_copy);
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void save_vbnv_flash(const uint8_t *vbnv_copy);
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/* EC backend */
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void read_vbnv_ec(uint8_t *vbnv_copy);
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void save_vbnv_ec(const uint8_t *vbnv_copy);
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#endif /* __VBOOT_VBNV_H__ */
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