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