1 /* 2 * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef __MBR_H__ 32 #define __MBR_H__ 33 34 #define MBR_OFFSET 0 35 36 #define MBR_PRIMARY_ENTRY_OFFSET 0x1be 37 #define MBR_PRIMARY_ENTRY_SIZE 0x10 38 #define MBR_PRIMARY_ENTRY_NUMBER 4 39 #define MBR_CHS_ADDRESS_LEN 3 40 41 #define MBR_SIGNATURE_FIRST 0x55 42 #define MBR_SIGNATURE_SECOND 0xAA 43 44 typedef struct mbr_entry { 45 unsigned char status; 46 unsigned char first_sector[MBR_CHS_ADDRESS_LEN]; 47 unsigned char type; 48 unsigned char last_sector[MBR_CHS_ADDRESS_LEN]; 49 unsigned int first_lba; 50 unsigned int sector_nums; 51 } mbr_entry_t; 52 53 #endif /* __MBR_H__ */ 54