[J-u-boot.git] / disk / part_amiga.h

/*
 * (C) Copyright 2000
 * Hans-Joerg Frieden, Hyperion Entertainment
 * [email protected]
 *
 * 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_ */
Commit	Line	Data
c7de829c WD	1	/*
	2	* (C) Copyright 2000
	3	* Hans-Joerg Frieden, Hyperion Entertainment
	4	* [email protected]
	5	*
	6	* See file CREDITS for list of people who contributed to this
	7	* project.
	8	*
	9	* This program is free software; you can redistribute it and/or
	10	* modify it under the terms of the GNU General Public License as
	11	* published by the Free Software Foundation; either version 2 of
	12	* the License, or (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	22	* MA 02111-1307 USA
	23	*/
	24
	25	#ifndef _DISK_PART_AMIGA_H
	26	#define _DISK_PART_AMIGA_H
	27	#include <common.h>
	28
	29	#ifdef CONFIG_ISO_PARTITION
	30	/* Make the buffers bigger if ISO partition support is enabled -- CD-ROMS
	31	have 2048 byte blocks */
	32	#define DEFAULT_SECTOR_SIZE 2048
	33	#else
	34	#define DEFAULT_SECTOR_SIZE 512
	35	#endif
	36
	37
	38	#define AMIGA_BLOCK_LIMIT 16
	39
	40	/*
	41	* Amiga disks have a very open structure. The head for the partition table information
	42	* is stored somewhere within the first 16 blocks on disk, and is called the
	43	* "RigidDiskBlock".
	44	*/
	45
8bde7f77	46	struct rigid_disk_block
c7de829c WD	47	{
	48	u32 id;
	49	u32 summed_longs;
	50	s32 chk_sum;
	51	u32 host_id;
	52	u32 block_bytes;
	53	u32 flags;
	54	u32 bad_block_list;
	55	u32 partition_list;
	56	u32 file_sys_header_list;
	57	u32 drive_init;
	58	u32 bootcode_block;
	59	u32 reserved_1[5];
8bde7f77	60
c7de829c WD	61	/* Physical drive geometry */
	62	u32 cylinders;
	63	u32 sectors;
	64	u32 heads;
	65	u32 interleave;
	66	u32 park;
	67	u32 reserved_2[3];
	68	u32 write_pre_comp;
	69	u32 reduced_write;
	70	u32 step_rate;
	71	u32 reserved_3[5];
	72
	73	/* logical drive geometry */
	74	u32 rdb_blocks_lo;
	75	u32 rdb_blocks_hi;
	76	u32 lo_cylinder;
	77	u32 hi_cylinder;
	78	u32 cyl_blocks;
	79	u32 auto_park_seconds;
	80	u32 high_rdsk_block;
	81	u32 reserved_4;
8bde7f77	82
c7de829c WD	83	char disk_vendor[8];
	84	char disk_product[16];
	85	char disk_revision[4];
	86	char controller_vendor[8];
	87	char controller_product[16];
	88	char controller_revision[4];
8bde7f77	89
c7de829c WD	90	u32 reserved_5[10];
	91	};
	92
	93	/*
	94	* Each partition on this drive is defined by such a block
	95	*/
	96
8bde7f77	97	struct partition_block
c7de829c WD	98	{
	99	u32 id;
	100	u32 summed_longs;
	101	s32 chk_sum;
	102	u32 host_id;
	103	u32 next;
	104	u32 flags;
	105	u32 reserved_1[2];
	106	u32 dev_flags;
	107	char drive_name[32];
	108	u32 reserved_2[15];
	109	u32 environment[17];
	110	u32 reserved_3[15];
	111	};
	112
8bde7f77	113	struct bootcode_block
c7de829c WD	114	{
	115	u32 id;
	116	u32 summed_longs;
	117	s32 chk_sum;
	118	u32 host_id;
	119	u32 next;
	120	u32 load_data[123];
	121	};
	122
	123
	124	#define AMIGA_ID_RDISK 0x5244534B
	125	#define AMIGA_ID_PART 0x50415254
	126	#define AMIGA_ID_BOOT 0x424f4f54
	127
8bde7f77	128	/*
c7de829c WD	129	* The environment array in the partition block
	130	* describes the partition
	131	*/
	132
8bde7f77	133	struct amiga_part_geometry
c7de829c WD	134	{
	135	u32 table_size;
	136	u32 size_blocks;
	137	u32 unused1;
	138	u32 surfaces;
	139	u32 sector_per_block;
	140	u32 block_per_track;
	141	u32 reserved;
	142	u32 prealloc;
	143	u32 interleave;
	144	u32 low_cyl;
	145	u32 high_cyl;
	146	u32 num_buffers;
	147	u32 buf_mem_type;
	148	u32 max_transfer;
	149	u32 mask;
	150	s32 boot_priority;
	151	u32 dos_type;
	152	u32 baud;
	153	u32 control;
	154	u32 boot_blocks;
	155	};
	156
	157	#endif /* _DISK_PART_AMIGA_H_ */