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/*
* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*/
#ifndef CHROMEOS_VBOOT_NVSTORAGE_HELPER_H_
#define CHROMEOS_VBOOT_NVSTORAGE_HELPER_H_
#include <linux/types.h>
#include <chromeos/firmware_storage.h>
#include <vboot_nvstorage.h>
/*
* Read/write non-volatile storage: return zero if success, non-zero if fail.
*
* <nvram> must be at least VBNV_BLOCK_SIZE bytes.
*
* See vboot_reference/firmware/include/vboot_nvstorage.h
*/
int read_nvcontext(VbNvContext *nvcxt);
int write_nvcontext(VbNvContext *nvcxt);
/*
* Set the recovery request in the non-volatile storage.
*
* Return zero if success, non-zero if fail.
*/
int clear_recovery_request(void);
/*
* Set the recovery request to <reason> and reboot. This function never returns.
*
* If <nvcxt> is NULL, this function loads the nvcxt from non-volatile storage.
*/
void reboot_to_recovery_mode(VbNvContext *nvcxt, uint32_t reason);
#endif /* CHROMEOS_VBOOT_NVSTORAGE_HELPER_H_ */
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