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/*
* Copyright 2017 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef __EC_CHIP_G_BOARD_ID_H
#define __EC_CHIP_G_BOARD_ID_H
#include "board_space.h"
#include "common.h"
#include "signed_header.h"
#include "util.h"
/**
* Check the current header vs. the supplied Board ID
*
* @param board_id Pointer to a Board ID structure to check
* @param h Pointer to the currently running image's header
*
* @return 0 if no mismatch, non-zero if mismatch
*/
uint32_t check_board_id_vs_header(const struct board_id *id,
const struct SignedHeader *h);
/**
* Check board ID from the flash INFO1 space.
*
* @param id Pointer to a Board ID structure to fill
*
* @return EC_SUCCESS of an error code in cases of vairous failures to read.
*/
int read_board_id(struct board_id *id);
/**
* Return the image header for the current image copy
*/
const struct SignedHeader *get_current_image_header(void);
/**
* Check if board ID in the image matches board ID field in the INFO1.
*
* Pass the pointer to the image header to check. If the pointer is set to
* NULL, check board ID against the currently running image's header. All 1
* bits in header Board ID flags must be present in the board id from flash.
*
* If the board id from flash is blank, board_id_type field from the header is
* ignored and only board_if_flags field is verified to match.
*
* Return true if there is a mismatch (the code should not run).
*/
uint32_t board_id_mismatch(const struct SignedHeader *h);
/**
* Check if every field of the board id is 0xffffffff
*
* @param id Pointer to a Board ID structure
*
* @return True if the board id is all 0xffffffff.
*/
int board_id_is_blank(const struct board_id *id);
/**
* Check if the board id type and type_inv are 0xffffffff.
*
* @param id Pointer to a Board ID structure
*
* @return True if the board id type and type_inv are 0xffffffff.
*/
int board_id_type_is_blank(const struct board_id *id);
/**
* Check if board id space in INFO1 is erased.
*
* @return True if INFO1 board ID space is erased, False otherwise.
*/
int board_id_is_erased(void);
#endif /* ! __EC_CHIP_G_BOARD_ID_H */
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