1 /* 2 * (C) Copyright 2000 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 /* 25 * See also Linux sources, fs/partitions/mac.h 26 * 27 * This file describes structures and values related to the standard 28 * Apple SCSI disk partitioning scheme. For more information see: 29 * http://developer.apple.com/techpubs/mac/Devices/Devices-126.html#MARKER-14-92 30 */ 31 32 #ifndef _DISK_PART_MAC_H 33 #define _DISK_PART_MAC_H 34 35 #define MAC_DRIVER_MAGIC 0x4552 36 37 /* 38 * Driver Descriptor Structure, in block 0. 39 * This block is (and shall remain) 512 bytes long. 40 * Note that there is an alignment problem for the driver descriptor map! 41 */ 42 typedef struct mac_driver_desc { 43 __u16 signature; /* expected to be MAC_DRIVER_MAGIC */ 44 __u16 blk_size; /* block size of device */ 45 __u32 blk_count; /* number of blocks on device */ 46 __u16 dev_type; /* device type */ 47 __u16 dev_id; /* device id */ 48 __u32 data; /* reserved */ 49 __u16 drvr_cnt; /* number of driver descriptor entries */ 50 __u16 drvr_map[247]; /* driver descriptor map */ 51 } mac_driver_desc_t; 52 53 /* 54 * Device Driver Entry 55 * (Cannot be included in mac_driver_desc because of alignment problems) 56 */ 57 typedef struct mac_driver_entry { 58 __u32 block; /* block number of starting block */ 59 __u16 size; /* size of driver, in 512 byte blocks */ 60 __u16 type; /* OS Type */ 61 } mac_driver_entry_t; 62 63 64 #define MAC_PARTITION_MAGIC 0x504d 65 66 /* type field value for A/UX or other Unix partitions */ 67 #define APPLE_AUX_TYPE "Apple_UNIX_SVR2" 68 69 /* 70 * Each Partition Map entry (in blocks 1 ... N) has this format: 71 */ 72 typedef struct mac_partition { 73 __u16 signature; /* expected to be MAC_PARTITION_MAGIC */ 74 __u16 sig_pad; /* reserved */ 75 __u32 map_count; /* # blocks in partition map */ 76 __u32 start_block; /* abs. starting block # of partition */ 77 __u32 block_count; /* number of blocks in partition */ 78 uchar name[32]; /* partition name */ 79 uchar type[32]; /* string type description */ 80 __u32 data_start; /* rel block # of first data block */ 81 __u32 data_count; /* number of data blocks */ 82 __u32 status; /* partition status bits */ 83 __u32 boot_start; /* first block of boot code */ 84 __u32 boot_size; /* size of boot code, in bytes */ 85 __u32 boot_load; /* boot code load address */ 86 __u32 boot_load2; /* reserved */ 87 __u32 boot_entry; /* boot code entry point */ 88 __u32 boot_entry2; /* reserved */ 89 __u32 boot_cksum; /* boot code checksum */ 90 uchar processor[16]; /* Type of Processor */ 91 __u16 part_pad[188]; /* reserved */ 92 #ifdef CONFIG_ISO_PARTITION 93 uchar iso_dummy[2048];/* Reservere enough room for an ISO partition block to fit */ 94 #endif 95 } mac_partition_t; 96 97 #define MAC_STATUS_BOOTABLE 8 /* partition is bootable */ 98 99 #endif /* _DISK_PART_MAC_H */ 100