/* * (C) Copyright 2000 * Hans-Joerg Frieden, Hyperion Entertainment * Hans-JoergF@hyperion-entertainment.com * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #ifndef _DISK_PART_AMIGA_H #define _DISK_PART_AMIGA_H #include <common.h> #ifdef CONFIG_ISO_PARTITION /* Make the buffers bigger if ISO partition support is enabled -- CD-ROMS have 2048 byte blocks */ #define DEFAULT_SECTOR_SIZE 2048 #else #define DEFAULT_SECTOR_SIZE 512 #endif #define AMIGA_BLOCK_LIMIT 16 /* * Amiga disks have a very open structure. The head for the partition table information * is stored somewhere within the first 16 blocks on disk, and is called the * "RigidDiskBlock". */ struct rigid_disk_block { u32 id; u32 summed_longs; s32 chk_sum; u32 host_id; u32 block_bytes; u32 flags; u32 bad_block_list; u32 partition_list; u32 file_sys_header_list; u32 drive_init; u32 bootcode_block; u32 reserved_1[5]; /* Physical drive geometry */ u32 cylinders; u32 sectors; u32 heads; u32 interleave; u32 park; u32 reserved_2[3]; u32 write_pre_comp; u32 reduced_write; u32 step_rate; u32 reserved_3[5]; /* logical drive geometry */ u32 rdb_blocks_lo; u32 rdb_blocks_hi; u32 lo_cylinder; u32 hi_cylinder; u32 cyl_blocks; u32 auto_park_seconds; u32 high_rdsk_block; u32 reserved_4; char disk_vendor[8]; char disk_product[16]; char disk_revision[4]; char controller_vendor[8]; char controller_product[16]; char controller_revision[4]; u32 reserved_5[10]; }; /* * Each partition on this drive is defined by such a block */ struct partition_block { u32 id; u32 summed_longs; s32 chk_sum; u32 host_id; u32 next; u32 flags; u32 reserved_1[2]; u32 dev_flags; char drive_name[32]; u32 reserved_2[15]; u32 environment[17]; u32 reserved_3[15]; }; struct bootcode_block { u32 id; u32 summed_longs; s32 chk_sum; u32 host_id; u32 next; u32 load_data[123]; }; #define AMIGA_ID_RDISK 0x5244534B #define AMIGA_ID_PART 0x50415254 #define AMIGA_ID_BOOT 0x424f4f54 /* * The environment array in the partition block * describes the partition */ struct amiga_part_geometry { u32 table_size; u32 size_blocks; u32 unused1; u32 surfaces; u32 sector_per_block; u32 block_per_track; u32 reserved; u32 prealloc; u32 interleave; u32 low_cyl; u32 high_cyl; u32 num_buffers; u32 buf_mem_type; u32 max_transfer; u32 mask; s32 boot_priority; u32 dos_type; u32 baud; u32 control; u32 boot_blocks; }; #endif /* _DISK_PART_AMIGA_H_ */