| /* |
| * Copyright (c) 2012 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_NVSTORAGE_H_ |
| #define CHROMEOS_NVSTORAGE_H_ |
| |
| #include <vboot_api.h> |
| |
| /* |
| * The VbNvContext is stored in block 0, which is also the MBR on x86 |
| * platforms but generally unused on ARM platforms. Given this, it is not a |
| * perfect place for storing stuff, but since there are no fixed blocks that we |
| * may use reliably, block 0 is our only option left. |
| */ |
| #define CHROMEOS_VBNVCONTEXT_LBA 0 |
| |
| int nvstorage_init(void); |
| |
| /* |
| * Declarations of implementations of VbExNvStorageRead and |
| * VbExNvStorageWrite on various storage media. |
| */ |
| |
| typedef VbError_t (*nvstorage_read_funcptr)(uint8_t *buf); |
| typedef VbError_t (*nvstorage_write_funcptr)(const uint8_t *buf); |
| |
| VbError_t nvstorage_read_nvram(uint8_t *buf); |
| VbError_t nvstorage_write_nvram(const uint8_t *buf); |
| |
| VbError_t nvstorage_read_disk(uint8_t *buf); |
| VbError_t nvstorage_write_disk(const uint8_t *buf); |
| |
| #endif /* CHROMEOS_NVSTORAGE_H_ */ |
